Considering the format war, I just went with the cheapest and most flexible solution I could find.

I purchased the XBOX360 Premium from them, returned the accessory pack in exchange for the HD-DVD drive and 5 HD-DVD's (I did not like the 2 games offered and I rarely need 2 controllers)

I also purchased Mass Effect.

so, £300 got me an XBox360 Premium with HDMI @ 1080p to go with my nice new shiny 50" HD Plasma, HD-DVD drive and 5 HD-DVD's, seems terribly resonable to me