Sunscreen

I've been trying to sift through all the info on sunscreen to come up with the best solution for my family.  I am the type of person that wants to find one product and stick to it, it is all about streamlining the process.  I have been avoiding the ordinary sunscreens due to the concern over estrogenic active ingredients.  Although it is my understanding that with testing on adults although found in their urine and blood, it didn't appear to affect their overall testosterone or estrogen levels.  But when i think about putting that on my babies... it is scary!  They have three times the relative surface area of an adult.  In addition, I have been concerned about nanoparticles and their ability to permeate the skin and body tissues, making their way into the blood stream.  There just doesn't seem to be enough information on them yet.  I just read this Scientific American article through the EWG's website,  http://www.ewg.org/node/27745.  I found it very interesting.   Also EWG's cosmeticdatabase.com  has some great recommendations... actually for all skincare.  But, these can all get pretty pricey, especially when i consider how much we go through.  We just recently found Jason's Sunbrellas Mineral Sunscreen on sale at Whole Foods and really like it.  But it would be expensive otherwise.  So I would be curious for some feedback on this issue and to know what others use.  Thanks!