If your hair is dark your best option is going to a laser hair removal clinic. If you haven’t already, compare prices at several of them - I got a quote at one that was three times as expensive as where I’ve been going. Groupon is also a good way to find a clinic.

I saw the Tria laser mentioned in another comment, but if you want to remove hair from a large area of your body I think it is a bad choice because of how slow it is, and because it’s not as powerful as the laser in a clinic.

If you can’t afford laser hair removal at a clinic, your best bet for removing body hair might be waxing. It’s pretty cheap, especially if you do it yourself.