5.1 Channel HDA audio, onboard video, Gigabit LAN, PCI Express, and ASUS Quality? You're looking at one decent motherboard, and one that won't break the bank. PCstats takes a look at Asus's A8N-VM CSM GeForce 6150, which is a quality board for the $106 price tag.
"The Asus A8N-VM CSM motherboard looks like the perfect workstation/HTPC motherboard at first glance; onboard graphics with analog and DVI-D monitor outputs, and nVidia PureVideo High Definition MPEG-2/WMV9 Playback acceleration. The A8N-VM CSM supports all Socket 939 AMD Athlon64/FX/X2 processors on the market, and is built around two recent nVidia chipsets, the NVIDIA GeForce 6150 & nForce 430. Onboard features include IEEE 1394a, a 5.1 channel HDA (Azalia)/AC97 audio controller, Gigabit LAN and of course analog and DVI-D Geforce 6-series onboard video. Expansion is possible through PCI Express x16 and PCI Express x1 slots for high bandwidth devices and two 32 bit PCI slots for legacy devices."