Tradehill-Paxum?
Volumes are very low on euros at tradehill... Paxum charges $2 at the ATM and $44.95/y for the card.

Mt-gox is slowwww....

Any other way to get euros for btc?
What do others in Europe use to convert their btc into euros?

install the latest nVidia driver 275.xx:
17.3 MHash/s, wow! That helped a lot   (I did have very old drivers)

Downgrading the gui-miner to 6-14-2011:
Did not help a lot: Unchanged at 17.3 MHash/s

I am a little afraid to overclock it to death... What variables are relatively safe to fiddle with, you think?
 
Any place where I can find all the possible flags? Could tinkering with those flags increase Mhash/s somehow?

(edit)
I also created a worker for my CPU, just for fun, the 6-14 version lets me select cpu-affinity, as long as I keep one processor focused on GPU, rest on CPU I get
17.3 MHash/s (GPU) +
2.5 MHash/s (CPU) =
19.8 MHash/s (total)

-Create wallet with http://heanet.dl.sourceforge.net/project/bitcoin/Bitcoin/bitcoin-0.3.24/bitcoin-0.3.24-win32-setup.exe: Done
-Register an account with http://mining.bitcoin.cz/accounts/register/: Done
-Also, register a worker there (since it appears one has to register each GPU individually): Done

-Install gui-miner (for 64bit) http://cloud.github.com/downloads/Kiv/poclbm/guiminer-20110501.exe:  Done
Now, the GPU I have did not show up in gui-miner, instead it gave me some feedback about openCL, so I installed http://developer.amd.com/sdks/AMDAPPSDK/Pages/default.aspx, restarted gui-miner, and there it was: my trusty old GeForce 9600GT, showing up just fine.

-Filled in credentials in the miner, pressed 'start mining':
It would not connect: 'starting' or 'connecting', then: nothing moves for half an hour.

Added 'summary' and 'console' to the view.

Summary seems to hang on the message 'connecting'. The console gave some clue, though:

So I tried with this flag:

Restarting mining now did not raise any warnings or errors in the console.
Checking the summary shows I am currently adding 3.2Mhash/s to the pool

But: after a while: 'verification failed! check hardware!' Oops:
tried
instead.

Restarting mining now did not raise any warnings or errors in the console.
Checking the summary shows I am currently fluctuating between 13 and 13.3Mhash/s.
Few seconds later: 1 share accepted.

Checked my account on http://mining.bitcoin.cz/accounts/profile/, estimated BTC reward for current round:
0.00030305 BTC
 
 

Where is a list of all the flag options?

Yeah, I know, its just an oldie gathering dust in a corner. 
 
How much hashes does it take to mine a single coin (or euro) anyway? Very roughly estimated?

Yes, indeed, increasing zeros technically again (and maybe later, again) would defeat the problem of resolution loss... temporarily!
 
It also introduces two, now inherent weaknesses to the system:
-now, technology has to increase just as fast (or faster) as the population using the system. It does right now, but will it do that later on? We just dont know: what if the government shuts down the internet (Pol-Pot scenario), the bomb drops, or the aliens land. Will the system still work? What if we dont find any real more new technology, but the amount of people on this planet ,using the system just grows and grows. Will technology always keep up with population? We hope. If, for some strange reason, technology stops growing, coins will get lost, and the system will die of resolution loss. The system is now depending on technology to provide ever increasing resolution (by adding zeros). If, for any reason, technology fails to deliver... game over.

-its not a problem now, and when it does, a possible solution is at hand, but is requires constant attention from now on. People will have to guard this 'boundary' of the system, and raise alarms and update the system in time, in a far future. Who? When? Where? Automatically? Projects can live for a couple of years, but what if support dwindles, and no-one updates the software anymore, leading to resolution-loss-death-system.
 
Now we have 2 dependencies: technology has to increase, and someone has to check if the system needs any higher resolution, even in the far, far, future.
 
If thats the only way to go: fine. But if the system can get rid of these dependencies, even better.

A thing I have been wondering is:

Howto setup one of my machines (windows 7, geforce 9600 GT) to mine some small coin when I sleep.

That would be awesome.
 
Then, how can I extract those coins, exchange them into euros, and buy groceries 

I would like to post a small manual about that on youtube to get more people involved: lots of greedy people will mine for a dime. (including myself, hehe)

If more and more coins are lost over time, sooner or later, the resolution of the coin system will drop.

Maximum of 21 million coins.
Ever larger amount of coins 'lost' somehow (forgot walletpassword, computer crash, house burnes down, holder dies etc)
0.00000001 BTC is the minimum amount per transaction.

That means you can now buy a maximum of 2.100.000.000.000.000 individual 'smallest items' (when they are all active in the system).
You could say the 'maximum resolution' of the system is therefore 2.1^15.

Loosing coins does not just refine the perspective, as it should. A side effect, is: it looses granularity.

Every bitcoin lost means a never-to-be-able-to-recover loss in the resolution of the money. The maximum resolution will decrease by 1.000.000.000 items each time someone looses a single coin. Right?

How does bitcoin counter this long term loss of resolution in the system?

Just learned about the whole concept of bitcoins and man, am I full of questions and energy to participate!
 
How safe is it, can I study the code, is it legal to use (high grade crypting & de-monopolizing money locally, how about tax?)

I would specifically like to work on perhaps some translations into Dutch, since that is my mother language, or anything else I could do for the community. I support the idea of getting rid of the 'banking' layer greatly.

I am printing the http://www.bitcoin.org/bitcoin.pdf first, to get a general overview of the principles at work, and then I will inspect the topics on this forum to see if any or all of my questions will be answered there.
 
Cant wait to build some website that accepts bitcoins!!