Hello again all, If youve read my other two threads you will have noticed i'm goin g to bbuild a computer. Due to ecommendations and a whole lot of unlucky price raises i've been forced to switch alot of things around. Right now the computer i want to build is composed of this. CPU-AMD Athlon 64 X2 4200+ 2.20GHz / 1MB Cache / 2000MHz FSB / Socket AM2 / Dual-Core (Windsor) Mobo-Biostar GeForce 6100 AM2 NVIDIA Socket AM2 Motherboard / Audio / Video / PCI Express / 10/100 Ethernet LAN / USB 2.0 / Serial ATA / RAID Hard Drive-Seagate / Barracuda 7200.9 / 80GB / 7200 / 8MB / SATA-300 / OEM / Hard Drive Case-Xion II Black ATX Mid-Tower Case with Clear Side Front USB and Audio Ports and 450-Watt Power Supply Graphics Card-RADEON X800GT 260mb display memory Floppy and Cd drives- whatever is in this computer Operating System- Windows XP Media Center 2005 with remote I'm preety sure all these are compatible mainly im just unsure of the operating system because i just changed my mind to upgrase up from home edition. Also i can upgrade to an AMD Athlon 64 X2 4600+ 2.40GHz for $75 more , Is it worth it? Thanks for any help you can give in advance!