Best amd64x2 compatible 939 board for under $150?

[neax]

What is the best board that I can get?
- amd64 and amd64x2 compatible
- 1gb lan
- 8+usb & firewire header
- PCIe + PCI for add in cards (what is the diff between PCIe-16 and PCIe-1?)
- dual channel memory
- ?SATA@?
- NF4?

are there any important features that i should be looking for?

 

[PX7800GT]

As Always I Recommand a : MSI K8N Neo 4 Platinum

 

[sturm]

bought that for a friend with an x2 3800+ and it fired right up. No bios updates or anything. Works great. has 8 sata, 4 ide, 2 raid controllors, and firewire.