Need help choosing the right SSD for my CPU.

Hey, I'm looking for a new SSD to add to my computer. The SSD would be the main driver (boot OS off of, and run games and some applications off of). I have a 1.5TB HD that can store the other stuff.

I'm not looking for a really "high-end" SSD, just something around 40-80GB is fine, with a $80-$150 price range.
Just looking for a little bit something to add and speed it up. I was thinking of just getting a Intel 80GB X25-M (80 because of the speed boost from V to M). I heard OCZ is cheap and very fast too, any opinions?

Two SSD I found that I thought might be good were the:
-Intel 80 GB X25M Mainstream SATA II MLC Solid State Drive SSDSA2MH080G2C1
-OCZ Technology 60 GB Vertex 2 Series SATA II 2.5-Inch Solid State Drive (SSD) OCZSSD22VTXE60G

COMPUTER SPECS:
-Running Windows 7 Ultimate (x64)
-AMD Phenom II X4 810
-4GB DDR2 Memory (RAM)
-1.5TB WesternDigital HD.
-PNY nVidia GTS 450 Graphics Card
-600W Power Supply (if that matters)
-MSI Motherboard

THANKS!