Im in the process of looking for a new videocard for my pc. It currently has a x600 pro 256 meg Radeon that came with the system. I know it only has 4 pixel pipelines and its really hurting my performance. I don't care if its an ATI or Nvidia
card, im just looking for something better. The only special needs for the card are that is PCI-E and it has to work with a 300 watt PSU. I would perfer something in the sub 150 dollar range.
The eVGA 6600GT PCI-e is $135, but you will have to upgrade your PSU. A good solid PSU is essential to stable system performance. Get a crappy one, or overload one, and it could literaly explode, and take other parts out with it.
Edit: Dang it, quit beating me to the answer!
20110813 - RIP
Take me out into the black, tell them I ain't coming back. Burn the land and boil the sea, you can't take the sky from me.
I think it's not a very good deal. I don't think it's a lot faster than your x600.
I would chose something based on x800GT/GTO wich are usualy very overclockable and maybe you can unlock some extra pipes. If nVidia is your thing maybe a 6600GT, but that wouldn't be a huge improvement over your curent rig. A 6800XT would beat a 6600GT at higher res.