Thanks Hill, I think you nailed it as far as SunPower's efficiency vs. size vs. roof space. That ultimatly was the determining factor in my system. Because of my limited roof space (1700 sq ft 2-story). No one could hit my target yearly kWh Production except with SunPower's newer 20% efficient 327 panels. So even at the premium price for the SunPower equipment the price per kWh (first year production) was nearly 1/2 all the other quotes. And the yearly production per panel was about 35% higher then all other panels. I pulled the trigger yesterday and signed all the paperwork. Ultimatly the company I went with was Heritage Solar out of Newport Beach. My sales guy was Nate Martinez. I had 11 local installers give me quotes that tottaled over 18 different quotes. As I said before the key piece of advice I would give to anyone considering it is shop it around. Get at the minimum 10 quotes. It's not just a price and markup issue but systems can vary so much from installer to installer that in cases like mine, the more expensive, "premium" equipment could outproduce to the point it's actually cheeper. Anyone getting serious about it feel free to PM me your email and I'll send over all the info i have saved. Lastly a huge thank you to everyone that got in this thread and gave there 2 cents.