DO IT!!
I'm going though the same phase right now! I finally took the class and just did it after thinking about it for a long time and I'm very happy I did. My dad always had bikes growing up and they are so much fun. Get a Harley haha. Of course, it's all personal preference but if you are going to be riding it a lot or long distances, get something that is more comfortable than say, a Ninja type bike, even if you do decide to get a Honda or something.
I'm pretty biased having been raised by a die hard Harley enthusiast but they are a tried and true bike. Start out with an 883 Sportster, that's what I did. They are nice looking bikes, light, easy to handle, and will still fucking haul if you so choose. And it sounds sick to say, "I ride a Harley". They are a bit more expensive, but it's easy to find ones from the 80's that look brand new. I just got an 02 and I love the thing. Even if you don't know a lot about bikes, you will learn over time.
Also, be ready for the insane amount of pussy you will be pulling. I've never met a girl in my life who didn't get all googly eyed at the sight of a guy on a bike. They love it haha! They always want to go for a ride.
Also, one last thing. Don't let the horror stories about accidents and stuff scare you out of getting one. Yes, they are dangerous and yes, no matter how careful you are there can always be some idiot who puts you in danger. But, stay alert and you will be fine. There are ways to make yourself more visible and all that shit. The best things in life always come with a risk!