cant beleive no one has mentioned Shimano, the 2-pot deores are brilliant but any of the range really.
I did. Brand new from Rose Bikes they are thirty odd quid an end plus rotors. If I like the XT's (once they're back in stock) it'll be bye bye M4's on the Lopes and hello Deore discs.
Got a link for those by any chance ? had a poke about on the site but couldn't see them.
Here you go mate - all of the brakes they have
http://www.rosebikes.co.uk/products/bik ... sc-brakes/
£35 for Deores! They are quick to post as well - as a comparison my cassette and chain only cost marginally more to post from Germany than my Howies top did from Wales and barely took any longer!
You'll need to add rotors too, but the SLX ones are pretty cheap at around £15 each.
2015 Stanton Ti Switchback
2006 Specialized Demo 8
2013 Specialized Allez Sport
1999 Santa Cruz Chameleon
1994 Cannnondale Beast of the East (rebuild still in progress)