Ever since VersionTracker started adding obnoxious ads, my go-to site when looking for Mac software has been
MacUpdate. Periodically, they will offer a bundle of about 10–12 software titles for about $50. Their current bundle is by far the most useful set I have ever seen from them—I have purchased separately versions of every title they're offering this time (except for FX Photo Studio Pro and Concealer), and I use almost all of them on a regular basis.
So whether you want to be able to burn data in style (Toast), print from your iOS devices to your existing printers (Printopia, *for a limited time*), have the ability to help yourself if you ever accidentally erase data (Data Rescue), want gorgeous and functional eye candy in your menu bar (Fantastical and iStat Menus) or your desktop (EarthDesk), access "hidden" data on your iOS devices (PhoneView), or write and publish multilingually (Mellel and Bookends),
this bundle is for you!