Yeah, there's a lot of stuff to read.  Was hoping somebody could fill me in on the outcome of it all, as there's way too much to take in easily.  For the sake of clarity, I'll be being the FPGA board for another project, but was just hoping to use mining to finance it, so, yeah I'm aware this stuff can be expensive. I've been drooling over some of the big PCI-e cards for years, but can't justify that kind of budget.

I've been meaning to get hold of an FPGA development board for a while -- I have a few projects that would need one, and I've outlevelled stuff I can do with CPLDs -- and was just wondering what kind of returns I can expect from them.  Ideally I'd like the purchase to be self-financing.

I see some posts that talk about figures (e.g. 80 Mh/s for boards based on a Cyclove IV 115, like the DE2-115) but (1) they're all quite old and (2) the posts that talk about the board I'm most likely to get, the DE0-nano, are quite self contradictory.  I've seen figures from 10 to 75 (!) quoted for it.  So, anyone want to tell me what is actually currently achievable?