A few extras
Most of this list is on my own list, but here are a few extras to consider.
Eraser - an absolute must, allows for secure deletion of files individually, or via the recycle bin.
RegCompact.NET 2.0 -Speeds up registry-intensive control panel dialogs such as Add/Remove Programs
PowerMenu - Adds functions like "Always on top" and opacity to standard Windows. Even works in Win7.