Best Place To Buy Monitor Wall Mounts?

Does anyone know where to buy decent wall mounts for flat panel monitors?

I have one here with all the holes already in the back of it for a plate but, cant find a plate that will fit the damn thing LOL

Its a HP monitor and i can only find wallmounts on the HP site for what look like TVs :(

Regards,

Lee

Here's some mounting vendors that we recommend at my work. Pretty large selection for what ever mounting needs you have.

http://www.peerlessindustries.com/
http://www.ergotron.com/

Might look here
http://www.mountcenter.com/