I second the notion on the safety course. I took it to finally get my endorsement. Here in WA, they can impound your bike if you're caught riding without one. That's muy expensivo. I thought it would be a giant waste of time, since I'd ridden off and on for years. Instead, it has saved my life and that of my wife on more occasions than I care to think of.
To get a really good idea of what is out there, coming soon, etc., I'd pick up a couple mainstream bike mags, Cycle World and Motorcyclist. If you can wait a month or two to read up on more, great. If not, your local library may have back issues.
Started with a Suzuki 650 Savage myself, a great beginner bike. Lightweight, easy to handle. Traded it in about 2.5 years later on something much larger, a Kawasaki Vulcan 1500. Great, inexpensive larger bike.
One last thought, I'd think about buying something on the smaller size to get a feel for them. Too many riders buy a really big bike first time out, can't handle them, put them into a tree and die. I'd seriously consider buying something around 600-900 cc used with the idea that if you love it, you'll likely outgrow it in a couple years and if you don't, you're not out much money.