Abit IP35 Pro is a fantastic board.
uGuru for tweaking while in windows (not available on any other Abit P35 board) is worth the money for the conveinience factor alone. There is also an extrenal CMOS reset switch on the back panel. It is a rock solid, stable OCing monster.
Iv had a Abit before A7nf a while back and was solid with no overclocking issues. With this said iv gone for this board which should come tomorrow. It does come out slower than my DS4 board on bench marks but I dont care, I need stability.