Looking for a fancy terminal application

I know about a month or two ago I saw on here a program that would let you pull down a terminal with a simple key combo. Unfortunately, I cannot find it in a search, and I cannot remember what it's called.

Does anyone here know what program I'm talking about?

I think you might mean Visor.

Another wonderful app by the maker of Quicksilver - is that guy ever going to let us pay him?

That would be it exactly! Now, if it would only accept the tilde key as a hotkey by itself, to make it more like HL2...