I found this website called am-i-fat.com
It has two tests to find out what your body frame really is, and then has weight charts based on your frame too. Just scroll all the way to the bottom for the weight tables, etc.
I thought it was cool because when you have so much weight to lose, you tend to either settle too high, or set some very low unattainable goal. It's hard to picture a healthy weight when you haven't been there in so long.
On a positive note, I was happy to discover that I do have a large frame after all. I wasn't just kidding myself all this time!
Anyhoo, I just thought it was a cool site to share.