I may be sick at home and not riding, but at least there's plenty of bike porn to view over at the MTBR.com coverage of Interbike 2008 !!!
Some bikes which have caught my eye:
1) Spot 29er Singlespeed with belt drive, that's right no chain. Check it out.
2) Titanium 29er Singlespeed from Ninerbikes, gorgeous!