SSD's are nice. But they don't help your overclock if that what you're looking to do. They're only good for PC Mark 05.
These are really good.
OCZ Vertex 3 60gb They come with the new firmware so you won't have to flash them. $79.99 after the mail in rebate. i just bought 4 of them. They're really fast. I'm having problems with them being too fast on xp startup in pcmark 05.