I'd like to start off by throwing out a big thank you to each and every one of you for putting in the time and effort required to help all those who are recently converted motorcyclists. I've been doing a lot of reading lately and I feel proficient enough to start asking questions. Most of them will probably be the standard questions most new riders post, and I've read through a lot of new rider forums, but everyone has a different story and I'd feel more comfortable getting answers detailed to my style.
As I mentioned before I have done a lot of reading. I've read about the mechanics of motorcycle engineering. I've read about the finer points of riding a motorcycle. I thoroughly understand counter-steering (which seems to be a hard one for new bikers to catch on to) along with other riding techniques. Also, I know enough about engines to be able to take care of a bike once I decide on one. I think I just need time on the road

I do have some experience on a 125 CC honda enduro trailbike. I drive a 5 speed standard transmission car so I understand the clutch work and shifting basics. I've wanted a motorcycle all 18 years of my life and I've been an avid cyclist to make up for that need, but it's time to fully realize the passion.
I'm a lanky 6'2" 160 lbs so I don't know if I'd be able to squish into a smaller bike. I'm not planning on going much past 500cc engines for my first bike. I'm restering for the MSF class and gonna hit the bookstore later today to look for some of the motorcycling books recommended in other posts of this forum.
This is some of the criteria I'm trying to fit a bike into...
I'm looking for a fun to ride, sporty bike that won't kill me while I'm learning. I'm also looking for a bike I can do some mods to. I'm an engineer, I like to tinker. I'd like something complicated enough to be able to mess with, but not a 1600cc firebreathing monster that requires serious mechanic abilities. None of my friends own motorcycles so I'm not really worried about being up to par with my first bike. Also, I don't really care if it looks great, although that's always a plus

So far from all the research I've done the Kawi Ninja 500R looks like a good bike for me. The Suzuki GS500F has also been recommended by multiple people for a starter bike so I'm looking at that one too. I'd like to know of any opinions out there on the reliability/riding experience of either of these two bikes. I'd also like to know of any fun things to modify on either of these two bikes, looks or performance, it's all interesting.
I don't think gear will be a problem. I'm planning on just going to the motorsport shop here in town, finding something light, yet protective, and getting it. I'm big into safety so any recommendations here would be gladly accepted also.
I apologize for the long post and the basic questions, it will just be comforting to have the answers directed towards me. Thanks again for the tremendous amount of info I've learned from all of you and I appreciate your patience.