Fish Eye for a Rebel T2i
 

Any recommendations? I would like the keep the cost down as much as possible while still getting a decent lens. Thanks

Go rent a couple of them and see what you like more.
http://www.borrowlenses.com/?blpid=4...a_bid=6fe1f3fa

I have a sigma 2.8 10mm and its just amazing. Prefect for cropped sensors.

do you have video of that and how much?

Flickr is really useful for stuff like this- just search for the lens that you're interested in and flip through all of the pictures that people have taken with that lens.