Read Nancy Clark's cyclist food guide. It is awesome! As far as the camelback is concerned...who cares how it looks. I live in HOT Texas and I couldn't ride very far without mine.
not to mention that yoou can pack your camelbak with ice and let it melt and keep you cool a bit longer. Camelbak also makes a slightly carbonated easily dissolved tablets with calcium carbonate and various electrolytes which is almost tasty.