Greetings,

Been off the bitcoin scene for almost a year, came back to a nice surprise

Anyway, looking to make a small purchase and i'm on limited funds, so looking to buy 1BTC over paypal (EU/USD).
(Last purchase I made was through bitmarket.eu, bit it seems its 'down for maintenance'?)

I know Paypal isn't the safest thing for a seller, but i'm on tight schedule, also less painful than other methods in EU...
Feel free to contact me for more info if needed, as i don't have a trade history in here...

Thanks!

I've been mining away at a very slow hash rate: ~220Mh/s;
currently doing it mostly for the fun, by my calculations it mostly just covers electricity costs.

Also, my rig has been on 16/24h on weekdays plus 24/24h.


After trying a few pools, i do like EMC a lot (nice features), however i wonder if with this low hash rate, a pool with much higher speeds would be more appropriate, even with some fees (less variance)

Also, i am guessing that DGM is probably not the best for 16/24h operation?


Suggestions welcome

What are your predictions for BTC prices over the next months, and why?

I can imagine that prices could keep falling for weeks, specially if the new hardware (7800 series) is as decent as it seems to be.
After a few months maybe, if enough interest/business/media is atracted, and with the 25BTC reward deadline on the horizon, things can boom again...


Thoughts?

Probably like most of everyone else, my starting point included downloading the official bitcoin client, creating a new wallet.

However, i immediately noticed two things:

 1) i choose a password (a lil security? yeah sure) but when i close and re-open the app, no prompt is given and the wallet is opened...
  ... so, i guess my pass got stored somewhere 

 2) No wallet export/import. Seriously, this should be a MUST.
    Yeah, i know the risks, i'll encrypt the data myself (GPG, whatever)


Ok, other wallet software exists, but each has it's own format as well... 


My question is, what exactly is the essential data a wallet must contain, and why?
I've read https://en.bitcoin.it/wiki/Wallet but information is scarce


Any linkage is appreciated

Considering a super-cheap mining rig, i've came across the 5770.

However, the page at https://en.bitcoin.it/wiki/Mining_hardware_comparison seems awkward:

Model	Price	Avg. Mhash/s	Mhash/J
5770	$136	212.83	1.45

if the 5770 has a MAX tdp of around 108W, shouldn't that be more like 2.0 MHash/J?

OC'ing 3 of these could get about 700MH/s with around 400W total load: somewhat efficient and cheap


The reason for the 5770s, is mainly for how easy it is to buy and sell them used, making for a less risky investment than a high-end card...


Comments welcome