You should be very happy with products from either Tandberg or Polycom. Both Poly and Tand are well made and quite easy to setup.
In what kind of environment do you plan on using the VTC equipment?
Are you looking for a set-top unit, or do you plan on creating a large conference room with rack mounted equipment?
How many cameras do you wish to have in the room? How many need PTZ control?
What kind of network?
Do you plan on integrating other peripherals such as Doc Cams, VCR/DVD, PC, external sound system, additional mics?
If you could give us a basic idea of your environment maybe we can help you to narrow it down.
I like Polycom for set-top units or environments in which the end users are completely hopeless (because of the GUI interface).
I prefer Tandberg for custom, deployable, and military encryption environments. I like that Tandberg does not use proprietary connections, making it easier to make custom cables.
If I personally had to pick one codec of choice to fit all of my needs, no matter what the environment, it would probably be the Tandberg 2500 or 6000. The versatility is exceptional, being able to be mounted in a rack, a roll cart, or a depolyable case. They have proven amazingly solid in our depolyable units.
Video Solutions Architect