You are absolutely right not to want a simple water softener as a whole house treatment unit. The point is to get rid of the toxins not soften the water.
I personally use Aquasana's whole house water filter and have really noticed good benefits.
Here's my advice.
Click on the link below to see get an aquasana whole house filter at 20% discount. If you go to site directly, you will not receive discount.
But you should know that a whole house water filter will not get rid of all of the toxins in your drinking water, so consider a tap water filter also.
If you buy a whole house water filter, you would not need to buy a separate shower filter. A whole house filter is about $800 but all of their products have guarantees.
If you feel that the whole house filter is not for you just now, try to buy a combo drinking filter & shower filter.
Again, if you go through the link - http://www.aquasana.com/index.php?discountcode=3572 - you will get a 20% discount.
For more info & a comparison of water filters, visit our page at: http://www.healthy-water-best-filters.com/how-water-filters-work.html
Scroll down for specific links to whole house, shower & water filters.
Just a disclaimer, we do admit to earning a small percentage of any sale that is made through our link but we really researched water companies to decide who to affiliate with. We could have made more money affiliating with frankly crappy filters.
Another thing that I love about aquasana is that they are so incredibly helpful as people. Any concerns or issues, just let them, or me, know.
Hope this is helpful and do let us know how it goes.
Have a great one and great health to you and loved ones!