I am new to road biking, but I have done a bit of mountain biking. I normaly take everything with me in the camel back, but when I mountain bike, its only about 10 miles or so. I know on long road bikes, 30, 40 miles, people say not to wear a camel back because you dont want anything on your back for that long of a ride. I will know how to change a tube if the need came up, I just havent had a chance to get a little bike pump yet.

sounds like from you guys I have everything right, thanks for the fast responses!