The little thing with the green light (ideally) that connects the miner to the Rasp Pi - preferably from someone in North America. LMK if you have one to spare and a price. Thanks!

[Edit:]

I picked up a good number of Monarch's over the summer. They weren't bad as a quiet, at-home miner. I've shed most of my working ones over the past couple of weeks. I'm down to 5 - mostly non-working, but one works - and would like to sell them as a bundle if possible. They're a bit fragile and would probably do better in the hands of someone a little more knowledgeable on keeping things like these running.

These are the 5, from highest stock Gh/s rating to lowest:

700 Gh/s - It's hard to say what went wrong with this one. Could be a leak (I see some stains), but the water cooling system seems fine. It was close to the Monarch that leaked for sure (the 550), but it ran for about a month after that one was taken out.

675 Gh/s - This one is a beauty. It looks perfect. I'm happy to send you a pic, but you may as well just look at a stock photo. I can't see anything physically wrong with it. It ran well for a while. And it ran well-above its advertised speed - usually around 710-720Gh/s stock. Then, one day, it stopped.

550 Gh/s - This one definitely sprung a leak. I noticed a fluid-ish substance all around it. It was actually still hashing when I shut it down. I cleaned out the substance from the sled area, though there's some in impossible-to-reach spots. I haven't turned it on since then because there was some fluid on the board.

475 Gh/s - This was my first one. It ran well for months. I actually ran about 490-500 Gh/s stock. Then I tried to play with the voltage settings just for fun. I got it up to around 640-660 Gh/s once. Then half of it died. The other half ran fine at stock speed for about another 2-3 months or so. Then it stopped. It still powers on, connects to the computer, and shows up in bfgminer. But it gives an error message and doesn't hash or report the temperature.

425 Gh/s - This one ... works. For now. It has for a while, though it's slowed down a hair over the last month or so. It used to run around stock, now seems to get around 410-415 Gh/s.

There's a guaranteed 410 Gh/s or so - at least for now - and maybe some more.

I'd like to sell them as a set, as these are a pain to properly pack and ship. BTC1 + shipping for the set. Escrow at buyer's expense and choice. If you'd like to see detailed photos of any or all of them, or a specific part, let me know. Thanks.

Edit: I won't be able to ship until Tuesday, most likely. So in case someone wants to jump on this, I'm having a black friday special, even though I'm really only selling these. I have the working one pointed at ck's solo pool. If you buy them and the working one gets a block before I can pack them up and ship them, we'll split it. So there's that.
 

I have 2 S5's for sale that are hosted by Lee Group. Hosting cost for each is $1.416/miner/day (about $42.5 per month). I've had a bunch of miners hosted there for months with no issues, and will still have miners hosted there after selling these 2. These include a PSU (not a rental - you actually own the PSU).

Check the thread here - https://bitcointalk.org/index.php?topic=934581.0

$375 ea. with hosting paid through July 20. Escrow can be handled through the hosting provider if desired.

You can set these to mine at your own pool and check up on them through their online interface.

If you don't want them hosted, Lee's group can ship the miner and PSU to you - you will have to check with them on cost, but it is quite pricey to North America at least.

This week’s events exposed a major problem. BTC works great for BTC to BTC transactions. But buying and selling BTC with a fiat currency is a major source of problems.

Putting aside nascent local markets that have sprung up, if one wants to obtain a BTC they have two options – sell either a good or service in exchange for BTC, or exchange fiat for BTC. There are not many options for the first (though they are growing), and the latter needs serious work. MtGox’s problems are evident, but Bitfloor performed poorly, and getting a BTC from Coinbase takes (as of now) 5 days. That is a major area of weakness, and one that, and this is pure speculation, was maliciously taken advantage of this week.

I'm new to posting here but have been reading for almost 2 years now. This has been suggested before, I am sure, but I think it is more urgent now.  I'm trying to understand Ripple, which I understand is an attempt to create a decentralized currency exchange.  I’m still not clear – and these are important questions – (1) how fiat gets into the exchange to begin with, and (2) how fiat gets out.

I see this is being discussed https://bitcointalk.org/index.php?topic=175490.0, https://bitcointalk.org/index.php?topic=175443.0, and https://bitcointalk.org/index.php?topic=175490.0 on the implementation side of things.  I have more reading to do.  I hope there are answers to the final two questions - how fiat gets in and how fiat gets out.