I'm the same way, I'm blonde but my blonde is "fading" a little so I decided to bleach it to jazz it up some & even out the blonde.
My hair is very fine & when I bleach it, some breakage does occur but not nearly as bad as I thought it would be. I use Garnier Nutrisse haircolor, someone recommended it to me when I first set out to bleach my hair because they said it's gentler & doesn't wear the hair as much as some do. I'm VERY happy with it, Garnier has several nuances of blonde available & their hair color is pretty gentle on the hair. For shampooing & conditioning I use Garnier Fructis for colored treated hair & I'm very happy with it (It was actually a coincidence that I use the same brand product for both shampooing & coloring :-))
So anyway, I'm happy with it & yeah it does wear the hair a little but nothing I can't cope with really