Eclectic is right, Whickerman. I bet not many people would have Rammstein and Steps in the same list!!
My list:
Alabama 3
Amsterdam
The Arcade Fire
Barenaked Ladies
British Sea Power
The Dears
Eels
Flaming Lips
Foo Fighters
The Fratellis
The Go! Team
Goldfrapp
Green Day
Hal
Half Man Half Biscuit
Little Man Tate
The Maccabees
Madness
Mercury Rev
Mohair
Muse
The New Pornographers
Oakley Hall
Pulp
Queen
R.E.M.
The Shins
Super Furry Animals
Supergrass
Tilly & The Wall
Tiny Dancers
Willard Grant Conspiracy
The Zutons
Just a few off the top of me head, like...