Heya,
I've been a long time RAID0 user. I use SSD now, and frankly, I won't go back to RAID0. I only use RAID1 here and there at this point. RAID0 is dead to me. Big hard drives are fast enough these days that the speed of RAID0 just isn't needed like it was a few years ago for various tasks. And RAID0 on smaller drives just for `speed' is not fast. It's just a way to get bigger singular hard drive space. The access time is worse than a single drive though. If you use your RAID0 for Windows/Games, you're hurting yourself. It doesn't speed up anything. Windows & Games use small file operations, and RAID0 very much is slow at this. RAID0 is fast with large file throughput. Copying massive 6GB files left and right? RAID0 can do that, handily. You want a disk that has virtually no access time and has the highest 4kb to 1Mb read/write times for your operating system and games. The SSD is that. Not RAID.
Just browsing your pictures & thumbnails on your SSD is ridiculous. You feel it. Everything loads very fast. All operations on the OS just zip on by. If you're wanting a whole system boost, get an SSD. If you just want more space, get a normal HDD. But forget RAID0 all together regardless--it's just not worth it for OS/Games, it's slower than a single 7200rpm HDD because it kills access time and slows down small file read.
Very best,