But according to the wiki, the FPGA hardware is so expensive, that I could barely make it to 200 Mhashes/s with my budget. So it would be smarter to just let my desktop PC do the job, with ~150MHashes/s (I tweaked it a bit). My computer runs 24/7 anyways, so the power consumption might be slightly higher, but yeah. It actually could pay the higher energy costs and maybe make a little extra, given the fact I didn't pay anything for it (in terms of mining, I bought it for personal use, so no break even to reach).
The second issue with FPGA is: It's really not usable for anything else but mining (at least for me). If the difficulty goes further up, making it impossible to mine (in terms of sanity), I'd have an expensive brick. On the other hand I could still sell those Radeons on eBay.
I pay $0.105/KWh...that includes electricity, delivery costs, taxes and anything else that may get added on.
Where do you live?
I think I need to move, or as my former company if I could put it somewhere.