ergonomic computer desk?

Got tired of my crappy wood computer desk and adjoined stands don't have a room for or can handle well with three desktop computers, a flatbed scanner, a printer, two large monitors and a LCD monitor and several hardware stuff. So I'm looking for an ergonomic desk or "customized" desk that can handle more stuff than a wood computer desk can and is more adaptable and flexible in a room environment than a wood computer desk would.

So far I have found three ergonomic online stores that meet or almost meet my needs:

http://www.afcindustries.com/home.htm
http://www.workspaces.com/index.php
http://www.biomorphdesk.com/

Is there any better online store that offer better desk options than above??

Thanks,

johnny41