Hi Aunkster, depends how much you want to spend, this ones reasonably priced.
Morgan Monroe Guitar Stool (Black) from Music 44
And this ones dead cool but a bit more expensive
Fender Barstools Are Here
They're nearly the same as bar stools, it's more a question of height and comfort so if you found a bar stool you liked it would be ok.
Cheers
Chris
You don't stop laughing when you grow old; you grow old when you stop laughing.