I like Bigred's post, but a note on multitabling: It doesn't matter how many tables you play, since you're just playing hands faster, e.g. a 1hr 4-tabling session is pretty much the same as a 4hr 1-tabling session (only a lot less boring ).

I'm 4-tabling 50NL with a 717$-roll now, I'll move back to 20NL if I hit 600. This works for me because I know I won't mess around with this (even though it violates the >15 buy-ins rule).