I "hate" to suggest these panels, because if Will mentions them, they will sell out like SOK batteries did.
330 Watts for just over $200. (5% discount for first order.) Blows the doors off the silly 100 W panels that I was buying when I first got into solar.
I've seen two produce 687 Watts this month on a partly cloudy day (so they had cooled down before the sun come again) in Phoenx, AZ.
I've seen them produce 450 Watts on a cloudy day here!
Note: This model has been succeeded by the REC365NP2.
www.solar-electric.com
No sales tax. (Something about Arizona not taxing solar stuff.)
The only "down" side, is that they are expensive to ship ($120 for the first) because they have to go by truck.
But if you live in AZ (or nearby) just drive up to Flagstaff to get them.
(
@AZRoadrunner : If you drive up there, I would like to buy two more. I'm near I-17.)