I have a Camelbak Siren and it is pretty comfortable. I stopped wearing it over a year ago, but this summer I will probably wear it again. Last summer I did short rides and two water bottles were enough. This summer I am enjoying cycling more than running and I think I will need the Camelbak. I just don't enjoy the extra weight, heat and loss of my rear pockets. My one experience with heat-induced sickness will remind me to get over this!
The cool this is our local cycling club marks stores on all their maps. I don't think you can ride more than 20-30 miles without encountering one. It might take some planning, but there is always a stop for more fluid.
Amanda
2011 Specialized Epic Comp 29er | Specialized Phenom | "Marie Laveau"
2007 Cannondale Synapse Carbon Road | Selle Italia Lady Gel Flow | "Miranda"
You don't have to be great to get started, but you do have to get started to be great. -Lee J. Colan