If you're looking for a casual, unpretentious sushi bar then go to Moto Sushi. The ambiance is like Starbucks (mood lighting) but with sushi. Vince is the Owner and has a great knack of remembering your name, which gives it a 'mom and pop' feel. I love the marketing of this place from the menus to the picture on the wall (hot asian model named Jayd Lovely by the hostess stand-shamless plug, don't hate). The food portions are perfect and this is truly important to me because I've yet to meet anyone who can out-eat me. I love their custom chicken/rice bowls, sushi is always fresh, and the moto chicken wings are spicy and moist. End your meal with an order of mojos or two (I don't like to typically share my dessert unless I'm in love with you) which is dee-licious!
Oh! And ask for their underground sushi menu to spice things up a bit.