Thanks for the replies everyone.
I realize that actual cycling will be quite a bit different than riding the stationary, but it's better than nothing. I'm planning on getting a bike after the holidays, so I should be able to make a smart decision by then. Hopefully I'll work my way up to being able to effectively ride the actual bike when I get it.
I guess I'll keep going along with what I've got for now and keep reading the forums for tips!