I am a newbie in the BTC world and I was wondering what would be the feasibility of an fpga based hardware with these specs:
900Mhashes/sec
about 5 watt power consumption
$1300-$1500 unit price
Hi. I'm also new to the BTC world, but I'm an electrical engineer and I've been following the threads on FPGA mining recently. I think that for that hash rate, your power target is off by about a factor of 25 and your price target is off by at least a factor of 2.
Disclaimer: I have not yet built, designed, used or measured an FPGA based mining rig. If one of the experienced FPGA miners drops in here, they may be able to provide a more accurate estimation. Maybe I'll play around with FPGA mining myself sometime, if I don't get distracted by a shiny object first.

well what are fpga's worth for if they consume 5*25=125 watt?? it may rise upto 10 watt but not more....
I can design the system with above specs but i really need to know if such a system is feasible....