Targus Digital TG-DL20P flash for Panasonic ships for $52

For $45 plus $7 shipping, you can get the Targus TG-DL20P from Adorama upon Amazon. There are five units left in-stock right now. If you are not in a hurry, Amazon herself offers it for $50 with free shipping, but it is not currently in-stock.

If you are not familiar with this device, be sure to look into it. There is only one customer review on the Amazon product page.