Hey, I am about to buy a Hp compaq dx2200mt with a P4 3.06 mhz cpu, a ati radeon 2400 video card including, and windows vista, with 1 gig of ram, 80 gig HDD, now my computer is a dell optiplex gx520 desktop tower, cpu P4 ht 2.8 ghz,1gig of ram,80 gig hdd, and intergraded graphics, now i am...