I bought the MacUpdate Spring Bundle last week and it includes some great software (listed below). As usual, bundles are a great way to quickly grab a group of applications for an ultra-low price. In this case, the full bundle costs as much as just one of these pieces of software -- MotionComposer alone is $149.
If you've been wanting to try virtualization, Parallels is included in this bundle (although you'll need your own copy of Windows if you plan to install it). MacUpdate's own service is included for six months. The handy MacUpdate app will scan your Applications folder for files and alert you when one of them needs an update. If, like me, you wind up buying a lot of stuff outside the Mac App Store, this is a valuable service.