I have read a lot of good on the forums About ABIT NF7-S . I just bought an NF7-S and XP-M 2500+. With a good memory, power supply heatsink and fan it will be a good investment.
I have seen good reports on various forums about the abit mother board.
These are some of the feautures
The NF7-S is fully featured with Firewire, Serial ATA, USB 2.0, integrated Ethernet, optical audio output, and remarkable overclocking potential. To top the package off, ABIT?s NF7-S can be found for under $100 online; a price that compares favorably to many competing boards.