Most of the professionals I know have for years been retiring their Wusthofs and replacing them with the lightweight, easy-to-sharpen and relatively inexpensive vanadium steel Global knives, a very good Japanese product which has - in addition to its many other fine qualities - the added attraction of looking really cool.
Global makes a lot of knives in different sizes, so what do you need? One chef's knife. This should cut just about anything you might work with, from a shallot to a watermelon, an onion to a sirloin strip. Like a pro, you should use the tip of the knife for the small stuff, and the area nearer the heel for the larger. This isn't difficult; buy a few rutabagas or onions - they're cheap - and practice on them. Nothing will set you apart from the herd quicker than the ability to handle a chef's knife properly. If you need instruction on how to handle a knife without lopping off a finger, I recommend Jacques Pepin's La Technique.
Okay, there are a couple of other knives you might find useful. I carry a flexible boning knife, also made by the fine folks at Global, because I fillet the occasional fish, and because with the same knife I can butcher whole tenderloins, bone out legs of lamb, French-cut racks of veal and trim meat. If your butcher is doing all the work for you you can probably live without one. A paring knife comes in handy once in a while, if you find yourself tourneing vegetables, fluting mushrooms and doing the kind of microsurgery that my old pal Dimitri used to excel at. But how often do you do that?
A genuinely useful blade, however, and one that is increasingly popular with my cronies in the field, is what's called an offset serrated knife . It's basically a serrated knife set into an ergonomic handle; it looks like a 'Z' that's been pulled out and elongated. This is a truly cool item which, once used, becomes indispensable. As the handle is not flush with the blade, but raised away from the cutting surface, you can use it not only for your traditional serrated blade needs - like slicing bread, thick-skinned tomatoes and so on - but on your full line of vegetables, spuds, meat and even fish. My sous-chef uses his for just about everything. F. Dick makes a good one for about twenty-five bucks. It's stainless steel, but since it's serrated it doesn't really matter; after a couple of years of use, if the teeth start to wear down, you just buy yourself another one. --"