System evaluation

I am considering buying the following system. My main concern is home theater but, for the cost, I don't want to be embarassed by music.

New Pioneer 5040 50" Plasma and HDMI dvd player $9,000
Lexicon MC-8 and Lexicon CX-7 amp $8,500
7.1 channel Piega speaker system (P series) $9,000
Signal cables $500

All in, the system will cost me about US$27,000. Any thoughts or suggestions for improvement?

Thanks.