ASRock

At the budget motherboard division of ASUS you could find the 939SLI32-eSATA motherboard in an AM2 version. I wonder what use the add-in card CPU port has here, on the regular 939SLI32 the port is used to allow the upgrade to AM2 CPUs which obviously isn't needed here.

• AMD Socket AM2
• ULI M1695
• 4x DDR2 800
• 2x PCI-E x16, 3x PCI, 1x PCI-E x1
• Gigabit Ethernet
• 8x USB 2.0, 1x Firewire
• 4x SATA-II, 2x UDMA

The 775Twins-HDTV seems to be a very promising media PC motherboard. It uses an integrated ATI X300 with on-board HDTV output via component.

• Intel Socket LGA775
• ATI Radeon XPress 200 + ULI M1573
• 2x DDR2 & 2x DDR1
• 1x PCI-E x16, 2x PCI, 1x PCI-E x1
• 10/100 Ethernet
• 8x USB 2.0
• 4x SATA, 2x UDMA

As mentioned before ASRock has implemented a future CPU upgrade port on several of their previous motherboards, including the famous 939Dual-SATA2. The addon card for AMD Socket AM2 has been shown here. It comes with the memory slots on-board because AMD has switched to DDR2 with the new architecture. Please note that the way the card has to be installed limits the use of big aftermarket CPU coolers.