depends on your specific needs and budget...
i love my gigabyte GA-7AXP Ultra for $128
course it has about every bell and whistle out there...
integrated 10/100
AC97 sound
3 - 1394 headers (with thing to plug into)
6 - USB (2 in back and 4 headers... also comes with thingy)
3 DIMM slots
5 PCI, 1 8X AGP
Dual Bios
RAID -ready
Serial ATA
rounded corners
pretty colors everywhere
my friend picked up a couple non-ulta versions of this for just over $100... my ultra (with SATA is the difference i think) was $128
check it out, no seriously, check it out!