I found this really cool tip for keyboard users in Visual Studio .Net.
If you go to the find combobox (Ctrl+D with the default keyboard mapping) and you type "> open" (without quotes). The ">" flips the find combobox into a mini Command window. The "open" part is the aliased command to the "file open" action. The super part is when you press space and the first character of the file you want to open anywhere in your solution, a dropdown window pops up with the files and folders that start with that letter. (thanks to Peter Provost)