Do you currently have everything but the psu?
No I am just currently trying to find out whats the best step to my first mining rig.
I want to run 4 cards cause of:
4 x 5850 will result in about 1400 MHASH/s (4x 350 MHASH/s) and will cost you about 540 euros (4 x 130 euro)
2x 6990 will result in about 1450 MHASH/s (2x 700 MHASH/s)wich will cost you about 1100 euros (2x 550)
Same ammount of MHASH/s but twice the price. (I do not get that btw)