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!)
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Panny 3000 PJ, 118" Carada, Denon 3300, PS3, Axiom QS8, PSB 5T, B&W sub, levitating speaker wire