I'm pretty convinced to go scsi (i dont like my current hard drive and would rather use it for backup/nonimportant data only), so i found a place for cheap drives. The drives i'll be using will be 15000rpm 8mb cashe 36gb seagate drives. My question to you is wether having a raid (striping, not mirroring, as i'll be using the old hdd for backup) will significantly increase storage performance. will it boot faster, have apps load faster, etc or will it be a waste of money which is not noticably faster at much. Is the loss of capacity worth it?