precisely! my 2 cents id find a gpu that will be usable for the longest time(meaning hopefully it wont be insignificant in 3 yrs) buy as many as you can in as many box's as you need middle road mb drives dont matter any junk laying around. nice efficient reliable powersupplies. throw in a 50$ cpu or even a badass one its your build just have fun and btw id think you'd be our next major player if you pull this off! just do it man!!! a new gpu will do 750k alone per day or so i believe so imagine 4 or 6!!!! plenty of intelligent computer freaks here to guide you