Ok so I wanna upgrade my PC's video card from a NVidia GeForce 7100 / Nvidia NForce 630i to a current model that can plays the newer games on high setting, (maybe not max but console quality at least) I already know Ill likely have to also upgrade my power supply (its 300W) but what else do I need to know to make the right choice?

Example of games Id like to be able to run

- Bioshock

- Assassin's Creed

- Call Of Duty 4: Modern Warfare

What size monitor do you intend to be using?

Also, do you know if it connects via AGP or PCIe?

my monitor is 21.2 inches

I THINK its PCi but Ill have to check once I get home, how do I check?

whats your price range?

price range is between 100$-200$ and Ill prolly buy retail not online

I'm extremely tempted to pick up a gaming laptop sometime shortly after the new year begins and Windows 7 hits.

thanks Starcraft, your name reminded me I also want it to run Starcraft II

It needs to be nVidia or Ati.
You can play them pretty easy with nvidia Geforce 8800 Gs/Gt or newer.
I have nVidia 7900 Gs on my laptop and I have played all but Assassin's Creed with it.

Im considering NVidia GeForce 9800S

Radeon HD 4870, radeon HD 4890 and nvidia 260 are around your price range, all 3 will play the games you listed on high easily