Best Place To Purchase Wall Mount?

[DrinkMore]

Looking to mount a Panasonic 50" 800u and a 32" LCD. The LCD needs pull out, full motion. Kinda like on an arm. Needs to be flat against the wall when not in use, but swing out when needed. The plasma can be flat.

I was going to go with Sanus. However there was another brand we used up stairs on the plasma. Hooks were attached on the back and then HUNG on a bar. Once up there I used this L shaped tool to turn the bar and LOCK it into place. Can't remember the name of it. I think it had a red logo on it. I will have to look when I am at home.

So, any suggestions? I really don't want any cheap brands. Prefer name brand mounts within reason on cost. How do the low profile mounts look? Really nice? How does it attach to the tv and you put the tv up? Does it HOOK on or slide on? Looks a lot different than the one I used.

Thanks!