Jenna,
Ring lights can add another element to your portfolio. It truly can create some cool images. Gary's ring light is more for macro use. Thing bugs, flowers, little green army men. With this size flash, you will burn through batteries and it won't be good for much more than half body shot. I have used a Sunpak DX12, which looks very similar to Gary's, in terms of size.
The Alien Bees model is the cheapest "good" one around. The AB is a larger and it isn't something you will be walking around with, but I image these will be for cool portraits.
http://alienbees.com/abr800.htmlI'm sorry I don't have any brides to show you yet. I will say they look great when guys have colored vests and the brides have good tans.
Bill