Netgear or Linksys. I hate D-Link. Look for a metal case, if possible, you'll get better heat dissipation off of that. And be ready to pay--with gigE switches, you get what you pay for. I mean, you don't exactly have to go Cisco, but... HP might be worth a shot, although they may be 'spensive. And possibly loud.

I am the Doctor, and THIS... is my SPOON!