When I repaved my development machine, what got reinstalled... and why? Here is my list, in alphabetical order.
Adobe Web Premium 5.5 Suite, from which I primary use Acrobat X, Illustrator, Photoshop, Flash Pro and Dreamweaver.
Bulk Rename Utility, the ugliest UI in the world, but priceless when you need to rename some crazy batch of files in some regular way.
Carbonite, to access my online backup (and eventually it will be unfrozen and backing up the new install).
DevExpress Refactor! Pro/CodeRush, for code efficiency.
Filezilla, for GUI ftp access.