for the convention. It looks like I MAY be able to make the convention! If I can do it affordably.

I'm looking for the most affordable (read: cheapest) place to stay in Vegas for the convention. I think the Trop is already sold out, so if I have to stay out of the Trop, I might as well stay where I can get the cheapest rate (especially since it will be just me - I don't really care how nice it is). Do any of you have any suggestions on the best place to find the cheapest rates, or the best way to "negotiate" the best rates?