I ride a motorcycle nearly every day. Many days I ride in heavy Chicago traffic, and I've ridden in L.A. traffic, and all over the country. There are a few things to consider when you get on a motorcycle:
1. Only you can keep you safe, and not even 100% of the time. You get into accidents on busy roads, the difference is that motorcycle accidents are always worse. I have been rear ended, run off the road, and clipped enough that I had to ditch. Accidents will happen, so get yourself prepared - wear the right gear. Protective pants, jacket, gloves, and helmet.
2. Get as much training as you can. Take the safety courses, take your bike to a parking lot, practice everything a million times.
3. Drive defensively - every other vehicle on the road is able to kill you. Don't expect them to drive responsibly. You need to look everywhere, all the time.
Get the bike. It's a wonderful way to get around. I couldn't give mine up if I was asked to.