Because of gas and my now longer commute, I now have a plausible excuse for my wife and I am looking for a bike. Specifically, I have been looking at sport bikes in the 650 cc range. I haven't ridden much since school (12 years), but don't think that will be a problem as i have a straight commute with little traffic. A few questions - How comfortable is a sportbike for 15 miles one way and the occsiaional 2 hour trip? I remember mine (Ninja) being great, but I was in my early 20's and I remember many things being great then that I would rather not do now. I am looking at used bikes - what should I look for and how many miles is acceptable. Are there makes/models/things to stay away from or that are better? I don't need the fastest thing running, but do need something reliable. Something like this is what I have been looking at. (just an example because its close to me.) Any help/advice here would be appreciated. Thanks.