I am building a new system in the next couple of weeks. Spec's on it will be: Mobo. MSI Neo2-FR Proc. Intel E2140 Ram. 3GB's DDR2-667 Here is a list of the hardware I can use: 2x Western Digital WD3200AAJS-22RYA0 SATA HDD 1x Western Digital WD800BB-53CAA0 IDE HDD 1x Toshiba/Samsung TS-H652D IDE DVD-R/W 1x Lite-On LH-16W1P IDE DVD-R/W I don't have to install both of the DVD drives. If this board will let me install an optical drive, and an IDE hdd on the same cable(I don't see why not, but you never know)I will ditch the other drive in favor of the 80 gig hdd. I have 59 gb's of music, and 112 gb's of movies. Also, with all my games installed, that = 53.6 gb's. I have heard that having your windows install seperate from games, that you can help your games. I don't really use my PC for watching movies, they get streamed to the 360's. Even my music gets streamed, but I do listen to it on the rare occurance. The way I had planned on setting it up, was to stripe the 2 320's, and install XP on the 80 gig ide. And have my music, movies, and games on the RAID setup. I don't have to have supreme performance just using windows, but I would like to help my games as much as possible. I don't have enough room on my 80 for my movies, but I could fit my music on it. Now, keep in mind I have a "Downloads" folder for my file sharing, and that takes up a good 80-150 gigs. And I have noticed, that when I have my downloads folder on the same drive as XP, my performance drops substantially. How would you recommend I setup my system? Also, on a side note, how much does using raid improve upon performance?