Motherboard Purchased

Having compared various Intel Atom Boards, I've settled on the Zotac ION-A series.

The board is a little more expensive than I was wanting to spend, but it comes bundled with an external 90w PSU - This brings the cost back into budget, as well as frees up space inside the XBox chassis. In Addition, the external PSU block should be pretty silent and reduce internal heat.

The board has an integrated Intel Atom N330 processor (1M Cache, Dual Core 1.6 Ghz 533 FSB). As well as HDMI and Digital Audio output. It's my no means a power house, but should be more than enough for any HD video playback.