im just wondering what i should do to this computer, i know i will have to change the graphics card, and i know i can switch hard drive disk space into ram. http://www.walmart.com/ip/HP-Refurbished-DC5700-Desktop-PC-with-Intel-Core-2-Duo-Processor-2GB-Memory-160GB-Hard-Drive-and-Windows-7-Home-Premium/19534024#Specifications just give me your opinions please o-o