You can purchase a brand new EOS M for about 300. It's pretty much a mirrorless t3i. The plus is you'll be able to use many more types of lenses that you can buy in yard sales or flea markets.
http://www.amazon.com/gp/aw/d/B008NENG1A...ot_redir=1
http://www.amazon.com/gp/aw/d/B008NENG1A...ot_redir=1
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