With Crysis and Unreal just around the corner I've been thinking of updating my dell dimension 9200. Its a pentium D 2.6 1 gig of ram and has a x1300 which is a useless card for games. Friends who have Gaming rigs say I should just get a new computer but I only want to play two games so can't justify the cost, and was just wondering is it possible to just get a new case, processor and graphics card plus more ram and use the psu, motherboard, Disk drive etc from my old PC. Any help would be much appreciated.