Theres a helpful Sticky thread.
I'll be nice this time though :
RAID-0 = splitting your data over two or more drives, It means you get faster reads and writes becasue you can read or write to all the drives at the same time.
Solid State = Instead of rotating magnetic platters, Solid State drives are the grown up version of your USB memory sticks. Bigger, Faster, and they have the connections to be used inside your PC so you can boot from them just like a normal hard drive.