Desktop Search

I've used X1 Search in the past to quickly search through files and emails. It works well enough, but tends to be a resource hog and the interface leaves something to be desired.

I recently discovered Copernic Desktop Search, which performs similar functions to X1 but is easier to use and less resource intensive. Even better, it is free and includes a desktop search bar (like the Google deskbar) for finding information on your PC or the Internet. Very nice product!