Can I get into University of Illinois at Urbana-Champaign?

Wow, I would say you have a decent shot although your gpa is a little on the lower side. If you absolutely have your hearts sets on the U of I (and it's absolutely amazing and I love it and it's the greatest thing that has ever happened to me), one thing you can consider is applying for admission through the agriculture college (ACES). A lot of people I know who weren't sure if they could get into the U of I came in through ACES and switched to different programs when they got here. It's not the most honest way in, but it has proven to work in a number of cases. So see what happens with getting into engineering or business school and if they reject you, try applying again with any major through the ACES college.