Everyone,
Thanks everyone!  I am getting some great ideas!  Keep em coming!
Ranjack,
The Ecamps bag looks promising.  I would certainly take one very strong, reliable water container that I have complete confidence in over four water containers that I don't have complete confidence in and I have had only one of several Platypus containers leak on me (and that was easily fixed with my lighter).  My problem is that with the MP-1 tabs as my only means of water purification (and Iodine is not an option for medical reasons), having a 1 liter (or larger) water container make things much simpler and prevents me from wasting half of a water pruification tablet.  Unfortunately I don't think I could cram a 1 liter Platypus in to my LowPro belt pouch even if I threw out the rest of the kit all together to make room. <img src="/images/graemlins/wink.gif" alt="" />  That's why the Ecamps bag shows promise.  What are your experiences with it.  How do you rank its durability as compared to a Platypus and Ziplock freezer bag?  Somewhere in between the two perhaps?     
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Learn to improvise everything.