Late response to the OP, but there's also the Novara Element from REI:

http://www.rei.com/product/744808

And the Bianchi Roger (but it's singlespeed only):

http://bianchiusa.com/07_roger.html

Then there's the Nashbar cyclocross frame you can build up:

http://www.nashbar.com/profile.cfm?c...Frames%2FBikes

But if you're doing mostly technical trails, I'd go with dirtyphotons' recommendation of a Surly Karate Monkey, though IMO it looks more like a 29'er mountain bike.