Good fold up treadmill?

When I move I am not sure I will have the time to go to a regular gym (not like I go now , but it will be harder), but I will be walking and stuff a lot less since I am moving to the burbs.

I am not really looking to lose weight, I gotta lean out though-- so I think the best bet for me is to run regularly.

Anyway-- was thinking of geting a treadmill that folded up that I could stick in the corner of the basement when not in use.

Anyone have a good suggestion?