I'm a class of 2010 too, so I'm no expert, but it seems like you've got a fair shot. Though your GPA and SAT I scores are a bit low for Carleton, your status as an international student should help, and you've got a ton of interesting and unusual extracurriculars.
Seriously, it sounds like you've done some great things! Carleton is my first choice, and I'm always so amazed at what other prospective students have done... it blows my mind that I might get to spend 4 years of my life with such wonderful people