Alright I got a XP 2400+ Thoro, A7V333, 512 meg of Micron 2700 ram, and an Asus Ti 4600 300/650, I am only 16 and just got a job and will be waiting till windows Longhorn comes out to build a new comp so when it comes to money I have very little I just wanna know what I should be able to run HL2 at will probally be able to squeeze a 100$ for an upgrade.