Will my PC run DOOM 3 ALPHA or the real game?

I really loveto know if my PC will runthe game on medium quality,bump mapping, 640X480 resolution OX AA and 4X FSAA, please tell me!!

PC:
Windows-XP PRO
Monitor-17 inches
Speakers- just a normal speakers!
Sound card-18 bit 6 doulby saround sound on mainboard
Mainbaord-ECS 7LVMM 4X AGP.
CPU-AMD 2100+(beats 2.2 ghz in benchmakrs!)
RAM-512 MB DDR PC 2100
Power suply-300W
Video card-ATI RADEON 9000 PRO 128 MB DDR

I have aslo downloaded new CATALYST 3.1 drivers for the video card and new directX 9 as well

So you think it will run on those settings??

it'll run it for sure, but not w/ max settings. your processor and RAM shouldnt be a problem, but as with my computer i could use a new video card.

Catalyst 3.5 is out, you know.

Will geforce 4 ti4600 do a good job?