Rock-Hard Stability ?

[LeftEyeNine]

Hey there fellaz,

One of my friends has decided to build a rig. He is a musician planning to use his rig as a recording apparatus. I already know what he needs for performance technically (realtime stuff will push the PC a lot), however since the general stuff on his PC will be about pieces of compositions and recordings, I have decided that his next best friend will be stability alongside power not to be cursing in the future for any data lost or cut/corrupted in half.

I'll be meeting him tomorrow to gather prices from around, but this lazy ass did not spare time to look for a stable motherboard and RAM (and HDD if you have any particular suggestions). So if you have any suggestions about rock-hard stable motherboard and RAM models, please let me know.

As a bonus question, I'd like to know if he would benefit from having multiple SATA disks on RAID or a single SATA would be better off (regarding the writing performance of HDDs).