Asset Management, Zip Application with File previews?
BetterZip is fairly comprehensive &amp; has a preview mode, which can be toggled from prefs as to whether it will uncompress or open to preview by default. It also has a Quick Look plugin, which remains free even after the trial period.

Zipster tries to go one better by integrating zip files into the system so you browse them just like folders &amp; can add/remove files without appearing to do anything other than drop/remove a file in a folder. 

Overall, BetterZip is the more comprehensive tool… but Zipster is free, vs 20 bucks for BetterZip.