Redline seems to consistantly put together some of the greatest deals out there, and this new 2010 D440 29er rigid mountain bike is no exception. It's got a full chromoly frame and rigid fork, the frame, fork, and hubs are disc ready if you'd like to replace the stock linear pull brakes (which are just fine for most applications) and it has a reliable Sram SX5 1x8 drivetrain. The tires are mid-width WTB Vulpine 2.1".
The geometry of this bike puts you in a very neutral position and the bike is clearly designed as a bit of a do-all rig that can be used on the daily commute or to have fun on the local trails. Despite the rigid set-up the bike feels plenty compliant, and of course its simplicity keeps the weight down. At just $590 it is almost as much a pleasure to buy as it is to ride. For all the specs you can visit the manufacture's site here. We have one of these in stock right now (17" size) so feel free to drop and and check it out anytime.