NoMugen910 said:1) I want to setup a Raid 0 with 2x 160gb sata hd's, is it safe to keep other files on there besides just application programs? 320gb of applications is not really an option.
No, because the drives are setup as a RAID 0 at the BIOS level. I higher end controller may be able to do this, however the ones that are integrated into a MB are pretty much basic RAID 0, RAID 1, or RAID 0+1. You could implement this at a software level however this would put more demand on the processor and take away any performance gained.Mugen910 said:2) If "No" to #1 then, can I partition the two 160gb into 40gb on each HD and use them in a Raid 0 for XP, leaving me with 240gb of backup space. This would be wicked cool!
If a RAID 0 is what you desire, I would get a couple of small performance drives, like WD Raptors, set them up in a RAID 0 with your OS and apps, and use your 160GB drives as data storage.