Okay here's the story....I just bought a computer from my buddy it was built for him 9 years ago...I know it old but with the new hardware I think it will be just what I am looking for... So its a Thermaltake Xaser II tower (huge).....it has a ASUS A7N8X Deluxe motherboard with 1gig of ddr ram...antec performance True 550w max. power supply...a video card which i haven't found out what it is yet...3 hard drive varries in sizes. A dvd burner, cdrom driver, and a cdrw drive...I want to spend about 500 to upgrade the computer what do you think I should upgrade first and to what....I haven't built a computer since 1999...i paid 150 for the computer as is in the running condition...and thoughts?