Asus A7M266: Upgrading various components

Howdy,

I'd like to upgrade a few components in my PC and need a little advice. My mobo is the Asus A7M266 mobo w/ the lastest (1007) BIOS installed.

I'm interested in upgrading my Video Card from a Leadtek GetForce2 MX DH PRO (32MB) to a Radeon 9000 Pro (128 MB). Is this card compatible with my mobo? I checked Asus' website for additional info, but their site isn't very informative.

In addition, I'd like to upgrade my cpu from a T-bird 1.33ghz to something with slightly more kick, perhaps an XP2100. However, I'm a little concerned that my current PSU, which is only 300W, won't be able to handle this upgrade. How powerful a PSU would I need to ensure a smooth cpu upgrade?

Thanks in advance for any advice

PS: Would anyone happen to know why Asus removed the A7M266 off the Athlon XP 2200 compatibility list at their website? I seem to recall that this mobo was originally listed as being compatible with the T-bred when they first published that list back in July. In fact, wasn't BIOS v. 1007 supposed to enable T-bred compatibility?