Looks like steam are having a big sale for the next few says, with some good deals. I managed to pick up:
Gratuitous space battles
Torchlight
Braid
Lucasarts adventure pack (yeah, probably bad, but £1.74... and includes The Dig)
Action Indie Pack
Star Wars Starfighter
All for a whisker north of £25. Not bad for 13 games really
Edit: make that 15. Looks like I got a trilogy where I thought I got one game...