Wow -- lots of replies; thanks for your ideas, guys!
quicksilver, I listened today to Sometimes just today. I had already heard "Save Your Scissors", and quite liked it (not sure where I heard it), as I liked the whole album. I'm not sure I'll use it for a poker night, as I prefer something with a bit more instrumentation, especially some bass.
rjbudz, nice idea! Well . . . sounds great in theory, but I think my pals (smart bunch, the lot of them) would catch on pretty quickly! I too enjoy music from the 60s and 70s (and I'm only 34!), but I think I'm looking for something a little less rock 'n' roll. Still, great bands you mentioned.
Nick and Hawkeye, I love those suggestions! I just might put those on during our dinner break! Nick, I know what you mean about having no distractions, but this is a friendly game with friends, so there's no great need for silence.
Cygnus, I think both Rush and Steely Dan might make for great poker music. Thanks for suggesting them; I'll try to find some of their stuff.
rgriffin, jazz is also a nice suggestion. To tell the truth, I was initially thinking of some kind of laid-back jazz/electronica. Anything specific you would suggest I try?
cheers,
supervij