6 Speed Tranny q's

I was looking into getting a t56 6 speed tranny for my car, and I seem to be able to find a lot of the t56s that have been used on the newer firebirds and camaros. Will a GM t56 work in my car with some minor modifications? If so, is it worth it? and how much would the price be for the parts needed. Even is someone could give me a link to some info on this it would be greatly appriciated. thanks guys,

Lenny