This thread deserves a bump every now and then, the links are such a great resource it would be a shame for people to miss them. But I wouldn't do it unless I had something to add, and here they are:
Low-limit Preflop Quiz, by Ed Miller.
Another well thought out post by the NPA. 20 questions where the low limit player can get some great pre-flop practice, followed up by an excellent discussion.
A Trip Report I Never Posted, by Inthacup.
This is the funniest trip report ever! Make sure to read all the replies to (especially those from the others that came on the trip). This is what Vegas is all about!