StackSocial is offering a bundle of 8 Mac Apps for $44.99. You can even use code ULTRA5 at checkout for an extra $5 off.
Things2, a sleek task management app, is part of the bundle. It alone retails for $50. Also included is the otherwise $99 ScreenFlow 5, a robust piece of software for screencasting and video editing on Mac.
Find the deal, with more details on each of the included apps, here.