i removed my old system a few months ago, been jones'n for bass again. this time i want to try and keep as much cargo space as possible. i want to go with a 5 channel amp, and a single 10" or 12" sub in the sidepanel cargo area,. thinking about the kicker L7. i'll be re-using my infinity 6.5 components in front and 6x9's in the back seat. i wanna to this fairly cheap. 500$ max. looking at these two amps... http://cgi.ebay.com/PHOENIX-GOLD-R9-0-5-5-CH-OCTANE-R-AMPLIFIER-CAR-AMP-NEW_W0QQitemZ5832064809QQcategoryZ79824QQtcZphotoQQcmdZViewItem http://cgi.ebay.com/HIFONICS-ZX8000-5-CH-ZEUS-AMPLIFIER-ZX-8000-AMP-800W_W0QQitemZ5843419107QQcategoryZ18797QQtcZphotoQQcmdZViewItem opinions?