What could be causing my 07 Camry LE V6 to vibrate?

Tire balance or an inner cv joint most likely if it only does it at high speed. Mtr mount issues usually show up more at idle, while stopped and in gear!

I'm only answering this now because Repair Pal has sent it to my email, because I'm in your area. There is not much more to say other then that I agree with Pushrod. If you really need someone to look at it for you I would be happy to, just let me know. And to you Pushrod I really hate to come on and just agree, with a good answer. But I didn't want to ignore a request sent from Repair Pal either, Sorry Brother.