Hi I have a problem after reading some of your posts about ram, my setup is :- 
NZXT Lexa S
Gigabyte GA-MA790X-UD4P (rev 1.0) mobo 
AMD Phenom II X4 965 Black Edition, Deneb Core, S AM3, 3.4GHz  
4gb ddr2 6400 800mhz ram 
XFX HD 4870 X2, PCI-E 2.0, 3600MHz GDDR5, GPU 
Seagate Baracuda 500gb,  32mb cache 
Corsair 750 PSU 
Zalman 9500 
Cd Writer 
DVD Writer 
24" Samsung SM2433BW Black Widescreen LCD, 1920x1200
5.1 Surround speakers 
Logitech G11 Gaming Keyboard 
Logitech MX518 Gaming Mouse
Windows Vista Home Premium 
I want to go to DDR3 so i am buying a Gigabyte GA-890GPA-UD3H, AMD 890GX, S AM3, PCI-E 2.0, DDR3 1866(OC), USB 3.0, SATA 6Gb/s, SATA RAID
the choices of ram i was looking at were 
G-Skill 4GB (2x2GB) DDR3 1600MHz/PC3-12800 Ripjaw Memory Kit CL7(7-8-7-24) 1.65V. 
4GB (2x2GB) Corsair XMS3 Classic DDR3 PC3-12800 (1600), Non-ECC Unbuffered, CAS 7-8-7-20, 1.65V. 
I have read about there being a problem between Skill ram and the processor i have how about the Corsair any probs there.
                                                                             regards   cookiebun