I know she's already a Reliable Smuggler, but two thumbs up for Andi for getting me a really cool Classic Space set (and some little extras) at a very very reasonable price. She's was also very patient regarding me not paying her when I said I would (I did eventually). On top of all that, she shipped the item at lightning speed, and it took only 4 days to travel from Germany to my mailbox!
I would like to nominate Mos_Eisley for inclusion on the SSL. He sold me a baker's dozen of the collectible minifigs, thus completing series 1 for me with a single transaction. Great communication, great packing, fast shipping. Superb service all around!