I'm looking forward to this as well.
I currently intend to get an MSI Neo2 Platinum and an AMD A64 3500+, Winchester and see what kind of overclock I can get.
I'm also interested in how much using 4 sticks of RAM would hinder the overclockability.
This is my first upgrade in 4 years so I feel like I can splurge on four sticks of RAM, but I'll settle for just 2x512 if using four sticks would significantly reduce the overclock.