Just yesterday I found the Mavic Crossland wheels. Tubeless and disc compatible for $230! Sounds like exactly what I need!
I'd be upgrading from the stock wheels on a 2001 Giant XTC SE2 (generic alloy sealed hubs and some Mavic X221 rims.) I doubt that the Crosslands could be any worse, but I could be wrong.
I'm strictly a cross country racer. I really need to get disc brakes and really want to go tubeless, so why not get tubeless compatible?
(I think I'll go with some Avid mechanical discs.)