I'm planning an early dinner for a friend's birthday on Saturday before the 7:30 show at Warsaw in Greenpoint. Any suggestions for fun, festive restaurants in the area? The friend loves Mexican margarita mills, if there are any of those around. Food doesn't have to top-notch -- we want it to be good, but we're mainly looking for a fun atmosphere. There'll just be a few of us and we'll be early, so it doesn't have to be a huge place. Any ideas greatly appreciated!