Thank you all for your candid opinions. You all had valid points against purchasing directly form China.
Gina recently found some panels from a seller in Florida that look like a real bargain but I'm confused about what kind of panels these are-- polycrystalline/multicrystalline or amorphous? They look like the former but the description states that they are "made with high efficiency back-contact solar cells." Does anyone know what this means? What do the specs tell you when compared to other 120 watt panels? In your estimation, do these panels appear efficient? I'm totally out of my league and would like to buy as much wattage as I can afford without needing to make additions in the near future. Plus, I really hate to throw money away! The $309 price makes these look particularly attractive. I'm hoping that one panel will more than fill the bill.
Here's the link for the panel I'm currently considering: Sun 120 watt solar panel
They also sell a charge controller that looks like it might fit the bill but, again, I'm not confident that I'm interpreting the data correctly. Here's the link: Charge controller