nope, i've never heard of them.
which doesn't say much...
Well if you like Python (and I suspect you do lol), then I think you'll like The Mighty Boosh. They are arty, musical, intellectual, surreal and downright uniquely entertaining.
The 2 main actors are Noel Feilding and Julian Barrat and have both been in a lots of original British comedy over the last 5+ years - Nathan Barely, Garth Marenghi's Darkplace, Surrealissimo: The Trial of Salvador Dali (film), Unnatural Acts, etc.