If you like Benihana's, then you would love Tokyo One in Addison.
http://tokyo-one.com/
It's a sushi buffet. The quality of the sushi is always good, but sometimes it's downright excellent.
$17 for lunch or $32 for dinner, awesome price for a sushi buffet. Lots of other hot asian food there if you have (weird) friends who don't like sushi, too.