This bundle delivers 11 Mac applications for USD $49.99 (apparently $456 value if all purchased separately).
I got the last one of these with Parallels 7, but this with Screenflow 3 is even better.
The full bundle includes (USD retail value in parenthesis):
Parallels 7 ($79.99) - Run Windows on your Mac without rebooting
Busy Cal ($49.99) - calendar and to-do list manager
Screenflow 3 ($99.99) - Record the contents of your entire monitor, simultaneously capturing your video camera, microphone and audio.
Civilization V ($39.99) - turn-based strategy game
Jaksta ($49.99) - capture audio and video from the Web
Espionage 3 ($19.99) - data security solution
Speed Download 5 ($25.00) - download manager
Attachment Tamer 3 ($14.99) - complete control over your Apple Mail attachments
KeyCue 6 ($28.00) - utility for learning and memorizing keyboard shortcuts
A Better Finder Rename ($19.95) - renaming solution
My Living Desktop 5 ($29.95) - transforms your desktop into a moving, living environment.
Other free option for Para7 is Virtual Box.
File Renamer is quite good. Im happy with File Mangler which is very similar and was free, but not sure it is anymore.
Busy Cal might be worth a look when I get on my Mac next.