I borrowed this not long ago and have been gettng well into it. It's not without it's problems and it's boring to begin with but once it gets going it's a pretty gripping game. I've now managed to pick one up for 15 quid so I think I might actually invest in an expansion pack. Has anyone bought any of them? If so, what are they like? Do I need to buy one before the others or can I just pick any? And finally, if I can just pick any then what's everyone's opinion on what the best pack is?