Tales of the Bounty Hunters is the book that you're thinking off - at least, that has the Dengar saving Fett and 4-Lom's Force attunement stories in. My knowledge in such things used to be strong but alas nearly all of my kind were wiped out during the much maligned Age of The Phatom Menance...
Here's a story: Last year I stayed over at a friend's house in Sunderland. His band and my band were going to Ireland the following day, so everyone was staying over in order to get the ferry together. I was the last person to go to bed and so had to just find space on his floor. I slept terribly and in the half light my eye kept on catching on this big photo of my friend (Richard). When I woke up I realised it was not a photo of Richard. It was THIS poster.
Cheers Chris! I'm in the middle of another poster for this gig, one that will be for sale on the night... *maybe* screened, depending on money. Aye, they're good lads are SMP.