Hi, This trusty PC was mainly for running my faves - Battlefield 1942 , call of duty, - it did great except it slowed down when my son and I tried Battlefield2 and halo (multiplayer and single player) System: AMD atlon 1.6 cpu 1800+ nvidia 4600ultra 128mb ultra video card 384 mb ram pc2100? i think asus av7333 MB (onboard sound) 60 gig HD (still only 45gigs full after 3 years) 10/100 300 or 350 watt pwr supply (prob300) *Windows xp-pro without updates I think the system is corrupted now - even with the norton security firewall and antivirus etc. because the windows updates could never be installed and I couldn't patch anything without a real windows disc. It starts twice - works ok and then bombs unexpectedly every 30 minutes or so. (NEEDS FIXING) here's the bad part - the shop that built this for me never gave me the windows disc. (I didn't pay attention) I guess this MUST GET A NEW WINDOWS DISC INSTALL and I'm ok with that - My questions are 1. which windows? XPpro or XPhome or xpmediacenter etc? 2. should I buy a new HD and set it up with that and then once everything is great - hookitup and grab the old family photos etc that were on the old HD? Whats a good HD sizedata ol 3. what is a good lowercost cost videocard that would play battlefield2 online without frameyness? 4. should I buy a low cost more powerfull cpu at the same time? 5. more memory worth it? ****I'm kind of strapped and would like to keep as this low as possible (I'm saving for a new fast system to give to us for Christmas well after the cpu prices fall this July) Thanks!