You have to use boot camp and as far as I know you have to keep OS X installed and then you can choose between them when booting.
Some 15" MacBooks are 1680x1050p.
Good decision. That was some really spendy ram you had there.
I have been running 1.65 on my Ivy 3570k @ 4.7 Ghz without issues since it released last spring.
( G.Skill 2133 2x 4 Gb kit 9-10-11 )
I agree the Mighty Mouse was a total FAIL. Mostly due to the tracking ball gumming up at the drop of a hat.
I have the Magic Touchpad now, it is REALLY nice. No more mouse gumming up and gestures too. Time Capsule also sucked because mine burned itself up do to the junky power supply.
And last...
Just wanted to add that I have been running a dual band Airport Extreme since they came out and I am very happy with it. It just works, no need to reset or mess with it at all.
I had a time capsule and the heat killed it dead.
I guess it's a known issue with them, I went to a Airport Extreme dual band and it's great. No heat issues and can do all the same as the TC.
If you look here: http://www.asrock.com/mb/Intel/Z77E-ITX/?cat=CPU
You will see that some xeon cpu's are indeed supported on the board, as are these memory modules specifically: http://www.asrock.com/mb/Intel/Z77E-ITX/?cat=Memory
While most non server boards don't list ECC ram compatibility...
Just wanted to add, 2x8 Gb would be better if you are seeking to over clock your memory. Otherwise there is no downside to running 4x4 Gb.
I have my 4x 4Gb Samsung 30nm sticks running at 2133 cas11 on sandy bridge with no issues.
I only add this because you said you may fold some, and folding...