My suggestion is either wait till the reviews for the 3570K come out or go with a 2500K. There is a "rumor" currently that Ivy Bridge may not overclock as well as Sandy Bridge (heat issues). Thats why its good to wait for full reviews to come out.
Mobo, go with the Pro. Its a bit more but will be better for overclocking overall.
The memory is perfect though. I have the same setup except I have the 2500K, P8Z68-V Pro/Gen3 and 16GB of Corsair Vengance.
I can`t, it`s about $40 higher, and I can`t afford that.
Don`t have much to spend.
I will also see Tom`s and Anandtech`s bench when ivy bridge releases before buying.
I gotta another question about SSD, but I will ask on the right topic.