I'm very picky on the water I drink as any chemicals or bacteria in the water and I get an immediate reaction. Most bottle water has some fort of chemicals or bacteria or they use "ozonation". Ozonation is an excellent sterilizer and cleanser but the only problem is that it kills all the good bacteria in your intestines also.
Carbon filters are good for removing chlorine but as was mentioned they accumulate bacteria and most if not all contain copper and other metal and/or metal compounds.
mommy, I'm very allergic to chlorine also found tremendous relief with a simple shower filter bought from Bed Bath and Beyond for $24.99
http://www.bedbathandbeyond.com/product.asp?order_num=-1&SKU=13724199 They say that your body absorbs a tremendous amount of chlorine in a shower so when you do get a filter on your shower you will notice a lot of difference.
Supposedly distilled water is the purest water but there are negatives associated also. Sunshine, in your reading what was it that made your decide not to drink distilled water any longer?
The optimum solutions are either reverse osmosis system or ones that use multiple technologies to fully purify all the water in the house. Unfortunately good systems run around $5000 for whole house systems. <img src="/ubbthreads/images/graemlins/cry.gif" alt="" />