I lucked in to my Wustoff Classic set at Bulldog Liquidators.
Bed, Bath, & Beyond sells Henkles.
Macy's carries a bunch.
Be careful, many of the big brands have cheaper China stuff then they have the good, top shelf ones.
Typically go to William Sonoma or Crate and Barrel. If you get the right sales rep you can test drive the knifes.
So much this. Personally, I'd steer clear of any of the major German brands (Wustof, Henkels) because the chef knives are too thick to cut well. My $40 Victorinox runs circles around my $200 Wustof. I just buy Victorinox and give them the Tormek treatment. Nobody's complaining yet (well, apart from the cost of a Tormek, that is).
+1 on the Victorinox. There is a reason most commercial kitchens and meat processors use them. They work VERY WELL for the price point.
Kind of like the Mora of kitchen knives.