Hey there all, I'm looking for a free(as in speech) equivalent to QuicKeys
If I'm lucky it'll also be free(as in beer)
I know Quicksilver can do that. I myself mapped my F5 key to an AppleScript that disables then re-enable Bluetooth.
I'm pretty sure Butler can too, but I've never used it myself. It's shareware (Quicksilver is freeware).
There is also Alfred, but it doesn't exactly do what you asked for above. But it's pretty fast to launch anything using Alfred and a couple of keystrokes. Plus, it's visually pleasing! There's a free version, and a paid version with more features.