I've recently noticed that I need to upgrade my computer, but I need help to check if the hardware I'm gonna buy are fully compatible with each other.

So, here's what I'm planning to upgrade my PC to:

AMD Bulldozer FX 8150 3.6GHz 16MB AM3+ FD8150FRGUBOX
MB Asus M5A88-M p/ AMD AM3+ Box
Corsair Vengeance 8GB (2x4GB) 1600MHz DDR3 - CMZ8GX3M2A1600C9B
HD Seagate 1000GB (1TB) SATA 3 7200 RPM 6Gb/s - ST31000524AS
VGA Sapphire HD6770 Radeon 1024MB (1GB) DDR5 PCI-Express - 11189-10-20G(already own)
3R System iCEAGE 500w IA500HP80(already own)

I'm also thinking about keep my current 500GB HD and use both 500GB and 1TB, and I'd like to know if there is any problem using different kind of HD (my 500gb one is SATA 1 while the 1TB one is SATA 3).
Also, I know that using 1333MHz RAM with 1600MHz will force the 1333 one overclock to 1600, but that kind of overclock is bad or it's okay to do that?

Cheers