Sam
Plenty of posts so obviously you boys are ready to pounce - I take it your trip to the states is going to be a tax deductible business benefit - you better factor that into your equation
I think AV Guy possibly has something similar to myself in mind. Why consider spending £11.5K+ on a single screen in your presentation suite without looking at other factors such as that troublesome lighting, sound, video, data and a control/interface system.
Also remember that any Plasma panel is only going to look as good as the source system - so you have to factor in everything down to good quality wiring, lighting, window shades, laptop plug in points etc...
Very few presentation suites that cater for an audience of ten + a presenter will have a single screen and I would look at using either:
50" plasma + front projection
50" plasma + front projection on a touch sensitive screen
50" plasma + rear projection
50" plasma + rear projection on a touch sensitive screen
50" plasma + 50" plasma - one for video + one for data
Any of these set-ups will give you far better flexibility and impact in a presentation - obviously I'm suggesting ideas without a brief on what it is or how you 'present'.
An interactive touch screen may not be the last word in video playback quality but certainly beats the pants of a single plasma display when it comes to interacting with your presentation and your audience.
So if you simply want the biggest plasma - go get the biggest on the market and ensure you budget for some good source kit. If you want to build a good presentation suite start with the room dimensions, a budget, a timetable, an inventory of current kit and a wish list from those who will be using the room for presentations.
Best regards
Joe
PS If money is no object why are you worrying about purchasing an unwarranted bit of kit from the USA!