Cam, if you are sitting low (i.e., couch level) you can use a coffe table to hold the TV. I am using one for my RPTV and the hight puts the sweet spot right where i need it. Plasma has a much wider viewing angle so you have more options, but as far as costs go, a used or cheap coffee table might be less than other options and more practicle. Mine has a lower shelf that fits my AVR, Center, and Cable box. (Mine was free as the neighbors needed to store it!)
Panny 3000 PJ, 118" Carada, Denon 3300, PS3, Axiom QS8, PSB 5T, B&W sub, levitating speaker wire