to build a brute force machine

[hoze]

Soo you wanna go to crack sl3 with this machine ?
2 7970 are a nice combination , also the motherboard is ok , i use the ud7 and the gigabyte series roxxx.
Ram and cpu are not necessary for bf , cauz its oly 99% use of gpu and 1 of cpu.

win7 64 prof is my favorite...
but to have a hardcore stable system you cant use windows....
arch linux i prefere or slackware kickass performance.

Thanks for the fast aswer.
Yes, SL3 crack and I'm want to learn little more about WPA craking .
Untill now I use,just beginer level, Backtrack 5,and as I know it's based on Ubuntu, so maybe backtrack do the job?