The P4P800-E is a good board, IMO. I have the P4C800-D (basically the same thing). With mine, you can set it to make all the changes needed to OC by 5%, 10%, etc. Or, you can do it all manually.
Just remember that you cant change the multiplier, so get some good OC RAM, to make sure that when you bump up the FSB, your RAM doesnt end up underclocking due to a funny FSB:SPD ratio.
Intel E6750...........PSN: ELBATROP
XFX nForce 650i Ultra
Patriot PC2-6400 8GB (4x2GB)
36GB WD Raptor
Samsung SyncMaster 931c
Samsung SyncMaster 750s
Windows 7 Home Premium 64