Wiz,
I do not qualify for SSDI, but can apply for long term disability through the state 9pension plan). If you read my post on insights, you know that today I decided to send in my information for our pre retirement glide. I am 52. The earliest I can retire is January 2012, but I am going to try to hold our for May 2012. This was not an easy decision for me to make because in some ways I feel like I will be giving up my identity, and I will have to become more frugal.

I understand what you are going through as I am exhausted, and it is only the 5th week of the semester. I just hope I can make it to 2012.
I do not have any words of wisdom regarding SSDI. Hopefully others can give you some good advice.