wyemarn I have this memory, 2 kits and if I use only one kit (2x1GB) I can go way over 1000MHz on 2.0v, I was at 1080MHz 5-5-5-16 2.0v and there was room for more but didn't push it.
This is the memory I'm talking about:
http://happy.ap.teacup.com/occ2/3.html