I did check the tires, and they need to be replaced. It's on my shortlist as well. I will definitely check out the handle bars. Also, I'm not a huge fan of seafoam; however, I think it might be a good idea to remove and rebuild the carb. I've never really done much with carbs (not since I was 16, and even then I didn't really understand what I was doing). How hard of a job is this to rebuild / adjust the carb?
You said the bike was running great, why do you feel you need to rebuild the carbs? If the bike is running smoothly now throughout it's rpm range, from starting it up, to idle to wide open throttle, a rebuilt carburetor is not going to make it run smoother or produce a lick more horsepower. My 2000 1100VT (same as yours) is the slowest bike in my collection, but I didn't buy it for speed. It's a great cruiser, runs all day long at expressway speeds without overworking the motor, and gets great gas mileage.
If your new to bikes and aren't real comfortable around carburetors and the many ways you can screw them up while trying a complete rebuild, you might wish you had just left well enough alone.
If you don't care for SeaFoam, run an ounce of Lucas Fuel Injector Cleaner through each fillup, and the carbs will last forever without needing to be rebuilt.
Just my opinion, but it's your bike, so take the advice with a grain of salt. Enjoy that bike...