Recruiting seemed desperate to get the new office filled, and somewhat unprofessional. I had an interview at the career fair, I felt like they did most of the talking. Some of the questions asked were about the company - do you know how we are? Don't try researching the company too much because their private and don't release a lot of info, but you can find some info on their FB, Twitter, or LinkedIn page. Also, I was asked 'why IT sales? why sales?'. It's pretty basic and relaxed. I think they are doing this over the phone now for people who aren't hired through a career fair.
If you get past round one, they then ask you to complete an application and a personality test online (if you haven't already done so).
The next step was to have and interview at the Chicago office. There was about 10 other people there, and they gave us a presentation on the company and the job. After that they had us break off and interview with different managers. The interview was pretty relaxed, they want to get to know you personally, figure out why you would be a good fit for the company. Don't be ashamed if you didn't understand their question, ask them "what do you mean by that?" They want to see if you can answer difficult questions, because that's sales. Be able to communicate what you mean clearly, ask questions if you don't understand, build relationships, and be confident.