1. Gloves- you don't need special gloves; I use paintball, weight lifting, and ski gloves. You do want something with a leather palm that won't shred easily in case of a mishap.

2. Yes- you can have your sit bones measured.

3. Gel saddles are comfier to sit on, but not to ride on. Given enough time, you'll sink down into the saddle and it will put even more pressure on your junk as you ride.

4. The LBS will explain how to operate the shifters. Geared bikes are nice, but the derailleurs are susceptible to being banged around by others while locked up to a rack.

5. Carbon bars are overkill for your budget and purposes.

6. The Buzz One comes with moustache bars. You may or may not need a stem with longer/shorter reach or higher/lower angle with the flat bar.