just dreaming... educate me on what I should get please!

[Sijray21]

does it make it more ridable on track? Does it cut down on wind buffeting or keep your helmet from ripping off or something? Or is it just for looks and speed? Last question, can they usually be added on if I bought a naked one and changed my mind?

i don't know about on-track, but i can imagine on the highway is pretty similar (just at high speeds). The fairings do help with aero and high-speed stability. The two bikes i'm comparing (GS500e and cbr 600rr) are quite different, but i did notice better wind shielding with the RR at highway speeds. Other than that i don't think it really matters. I can imagine the plastics will help save more parts in the uneventful situation of a crash, but it's not worth customizing a naked bike that's never been fitted for a set before - less plastic = less parts to replace in a crash (IMO). My helmet at higher speeds moved around more without a front fairing and wind screen on the GS500e when i had it, i remember that difference was significant.

Oddly enough, my next bike will likely be a naked sport bike of some sort with a seating position that's not as aggressive. It's duty will be just street though.

*edit* (oh, and I also realize the naked ones have a more upright riding position, does that take away from cornering and the ability to lean correctly?)

Depends on the bike. Generally speaking i think the naked bikes have a more relaxed seating position, but it really will depend on the bike. Leaning correctly can be done on any bike, but unless you want to drag an elbow or something i think you'll be fine with most naked bikes