Not bought a gpu for a while - got a GeForce4 Ti 4200 atm. lolz. 
Now got an overclocked i5 and looking for a new gpu. I've got it in my head somewhere that intel + Nvidia and AMD + ATI are the best combinations. Is this actually true? Would i have any issues if i went i5 + ATI?

Now got an overclocked i5 and looking for a new gpu. I've got it in my head somewhere that intel + Nvidia and AMD + ATI are the best combinations. Is this actually true? Would i have any issues if i went i5 + ATI?
. By the time Keplar is out, if it's not faster than the 7970 then Nvidia's R&D team should be charged with sabotage
.