Camera help

After saving up my hard-earned money, I bought a new digital SLR! I had been wanting one for a while (aka over a year) and we saved up enough to buy one. Now I just have to figure out how to use it! I'm really excited about the possibilities though - SLR's offer so many options!

But I have two questions for anyone who can help -
1. What kind of camera bag should I get? I'm looking for one to carry the camera body itself as well as a lens or a few lenses... If only shootsac offered something like that, oh, and if only shootsacs were affordable on a preschool teacher assistant salary.

2. What is a good second lens to get? Now I have the 18-55 mm lens that came with the camera, and I like it. I'm trying to figure out what I should get next. I intend to use it for travel photography (like when we go to Australia in a few months) and to take better of dh when he's surfing. Any suggestions? I have a Canon XTi.


HWotD:
Pahupaʻikiʻi - camera
"pa-hoo-pa-ee-key-ee"