Ippon Sushi, Haymarket

EDIT 05/07/07: Ippon Sushi has now closedSushi train is one of those tricky places where if you're not careful, the stack of plates beside you (and the bill) can grow exponentially.Still, there's something mesmerisingly hypnotic about choosing your own perfect plate of sushi from the endless marching nori army.Ippon Sushi doesn't help the gluttonous cause by offering sushi plates at either $2.50