Probably the 150,000,000th Vid Card Question., I need a bit of help again Options

[Taillus]

Stop me if I am going crazy with this but I really want to make sure. Through work I am able to get an ATi X800 AGP 256MB Vid Card at a really good price. I know this card is listed on the "supported chipsets" in the FAQ's of their site but that is as far as my knowledge goes.

I have a 2GHZ P4 Processor
512MB of dual channel DDR ram
a Sound Blaster card (No idea what type)
and as it stands a P.O.S Nvidia MX 420 Vid card
Not to mention that I have updated just about everything I can possibly think of.

If I replace the vid card with the X800 stated above will I be able to run Oblivion? I really don't mind if I have to run it in 640x480 and with the bare bones settings I just want to play it like mad. Will this setup do until I have the extra cash to buy a Dell XPS system next year?

[Taillus]

Yeah that will be my next endeavor. I knew that if I could even play the game at all it would ease my pain until I save up enough money for more ram. But will the framerates make me not want to play?

Either way, I need this video card and for the 100$ canadian it will cost me then I think it is a sweet deal for a 256MB card no matter what. It will blow my MX420 out of the water (stupid 64MB vid card!!!)

Thanks for the input, I have been trying all morning to get some feedback. Now I can order it and be playing Oblivion by Tuesday/Wednesday!!!!