If you have your keyboard settings set to the "Visual C# 2005" setting, the window switching and text editing chords are excellent. You hit the first combination of Ctrl + Key, then release and hit the next letter.
I still use F4 to show the properties pane so I don't know the chord for that one.
If you go to the Tools > Customise menu option and press the Keyboard button, it gives you a list of commands you can search to see if a shortcut is available, or you can select the "Press Shortcut Keys:" textbox and test shortcut keys you want to assign to see if they conflict.
Addendum: I just found another great one that I think I'll be using quite frequently: Ctrl+K, S
pops up an intellisense box asking you what you would like to surround the selected text with. It's exactly what I've needed all those times I've needed to wrap a block in a conditional or a try/catch.