Last year I bought a Visiontek GF3 right when they first came out. I was kinda bummed after I realized that I had paid top dollar for a plane jane Nvidia refference card. Thats what Visiontek puts out, I was able to oc the core from 200 to 235 and the memory from 460 to 540, all stable (after I put on a blue orb). After a few weeks the other cards started to hit the market with better bundles and addons and higher oc'able chips. I am not really complaining but if you wait just a little while longer and read the GF4 Ti 4600 reviews you will begin to see which ones will be the better performers. Personally, I am going with the Evga Ti 4600. I signed up for the stepup program which will let me upgrade to next years Gf5 for the measly price of shipping & tax. OH YEAH! The Evga Ti's come with the bomb cooling, it is new technology and is supposed to wipe the floor with any other video card cooling solutions out there (except of course H2O).
My recommendation list starting with the best. (as it stands now)
1) Evga -Asc2 cooloing baby
2) Gainward -Goldensample is what I'm talken about
3) Asus -They do have some 330 core cards for the $$