Word of warning, that SSD will not boot an OS. EDIT: To explain, PCI-e SSD drives currently do not allow any OS to boot from them. They can only be used as high-speed storage for the time being. In the future, BIOS may provide support for PCI-e booting, but for now it doesn't. If you want to boot an OS, it either has to be via IDE/SATA (HDD, SSD or ODD), or USB (although I've yet to get a USB boot OS working in my experiments). EDIT2: After doing some research into it, I've found that you actually can install an OS onto it (it's not plug-n-play so you'll need to load additional drivers before the installation), however I've read many reports of it being unstable afterwards with BSoDs appearing regularly. It might just be with a few defective products, but I've seen enough over various forums to be skeptical that it's any better than a Crucial C300 120GB drive.
Simplified description of RAID: an array of drives set up to write data to each drive at the same time.
RAID 0 = sharing the data across each drive. Provides additional performance and capacity, but if one drive dies, all the data is lost.
RAID 1 = mirroring the data from one drive to the next. Doesn't affect performance at all, and you gain no extra capacity from the extra drive, but if one drive fails, you lose no data so long as the other drive still works. In other words, using a backup drive.
