I have come across WinURL, which launches any URL stored in the clipboard.
Does anyone know of such a tool that will Google any text in the clipboard?
Edit: I'm looking for a solution that does not involve waiting for a browser to load. I have, for some time now, been using the AutoHotKey solution given below. However, since I am using a slow machine and am often multi-tasking, by the time the browser has loaded and Google has popped up, I have either forgotten what it was I was intending on Googling in the first place, or have something else in the clipboard. The ideal solution would involve a small text edit box popping up when the keyboard shortcut is pressed, in which the Google search query can be typed (or pasted). Hitting Enter will cause the google request to begin, allowing it to load in its own time.