Could someone please look over these to see for compatibility issues etc. I would like to note that this is for a friend so I need to be extra careful on compatibility and making sure it works. I have built a computer before, thank you.
Yeah, don't get the triple channel memory for a bulldozer. Use dual channel.
A core i5 CPU is gonna be faster and they run about $60 cheaper too. I'm an AMD fan mind you, but a z68 mobo and a core i5 2500k is a smarter buy. Also use dual channel memory for z68.
The 750W power supply is overkill unless pursuing sli or crossfire. 500W is plenty. Even 600W is plenty for two 550ti.
Having said that, it would help to know the resolution for gaming but I'd rather go with a GTX 560ti. This would ensure even the most demanding games at 1080p can be maxed out, except for maybe BF3. So take the savings from the PSU and CPU and invest in a better graphics card is my suggestion.
Final small question, probably a very simple answer, so I said I have a 470 GTX well my my mobo only supports CrossfireX, ofcourse ATI only, I was think I wanted to go SLI, can I replace my mobo while still keeping my CPU?