Brothers in Arms by Dire Straits. I've just learnt it off by heart and it's good fun to play along with the track. Any other guitar orientated ballads that are similar to that one? Cheers
Some of the newer stuff? What It Is and the Trawlerman Song are pretty good. That's if you're looking for more Dire Straits Stuff though.
Telegraph Road if you're up for a bit more of a challenge, with equal amounts of balladyness and Knopfler wizardry.
A lot of Eric Clapton stuff has similar guitar-focused ballads. There's an acoustic version of Layla that's quite good.
Ha forgot I made this thread :S

Thanks for the suggestions guys! I've got Mark Knopfler's Kill to Get Crimson. Quite good album I think.