Playing both $2NL (occasionally) and $5NL (usually) there is only a little difference between the two - but you'll still have ppl drawing out when they have absolutly no odds to do so in $5NL a hell of a lot of the time too..

Anyway - the main thing I find at these stakes is to spend the first few hands watching and seeing who are the call stations, who are the bluffers, who are the maniacs. Next I generally try to test a few by doing decent raises and seeing their responses. Those who will just continue to call even with a low board that are unlikely to have hit anyone you'll find are going to be your pay off people. When you have your big hand bet well and these guys just won't drop it!

I was at a $5NL table the other day with 3! guys who just refused to fold any hand before at least the turn! So pick your hands - but make these guys pay

I'm sure it's similar at higher stakes - but I've found that even at these stakes the majority of players do get intimidated when you have a few big hands shown down. Take advantage of these more passive players by being aggressive/bluffing.. there's nothing better than betting your decent hands well and being only up against the fish you know will pay you all the way to the river

All in all - pick your opponents - pick your hands - and play especially from position.. Keep in mind even with K-7 from late position - your fishy friend will pay you off with your 2 pair to his pair of 7s!