I just shot a house party scene. Depending on how big of a scene you are lighting and how wide you plan on shooting, you could probably get by with some super-cheap work lights (about $6 apiece at Walmart) with 100w and 60w bulbs. These have clamps, so you can attach them just about anywhere.
The room I shot in was small, so I kept it tight and only had maybe 2-3 dancers in a shot at any given time. Used 60w aluminum lights handheld for light washes on the actors. Worked really well.
I use these cheap lights on just about every shoot, even though I have better lights. Just add some black wrap, some black foam-core boards for flags, a diffusion pack, and a few light stands. Cheap and effective.