I'm a professional cook on my way to culinary school, I am looking for a really good chef's knife. Edge holding is a high priority, as is comfort of used and general durability. I work Eight hours a day, choping, slicing, mincing, dicing, and making juliene vegetables. I need a knife that won't dull after eight hours of hard use. I would like it to be fairly wide from the top of the blad to the edge, and about 10-12" long. and obviously.. since i do so much cutting, not too heavy. Also.. NO HOLLOW GRIND... any suggestions?