What is the best storage program available?

Cbr and Cbz are all very good for actual viewing but unlike pdf doesn't give you a thumb picture to view covers in Vista.

Come storage programs come with updateable cover pictures, I believe.

It would be nice to have such a program to make sure my collections are complete and up to date.

Could this be something like what you're looking for? http://comicrack.cyolito.com/

edit.
Oh, and this if you use mac: http://www.bitcartel.com/comicbooklover/

Thanks, i will be using this.

I use both CDisplay and ComicRack. I prefer ComicRack for it's layout but CDisplay has better functionality.

Just tossing it out there trying to decide on a program

Hey thank you so much for the comicrack...it is so much better than acrobat! Thanks a lot!

well, cbr 7% cbz is good, but if thumbnail is preferred then pdf is good...

I use Simple Comic on the Mac and it's handles the thumbnail issue nicely - in fact I highly recommend Simple Comic if you do not need the collection management (or purchase price) of ComicBookLover!