Damn Weasel, I'm sorry to hear that. Hopefully any surgery you undergo will be successful and get you back on your feet as soon as possible. Did you do anythng to possibly aggravate your back or are you just "lucky"? Not sure if it would help your comfort now or post surgery, but I do a lot of sitting in front of the computer for work and I swear by is this;
Tush Cush - 1-800-451-6206
It is designed to alleviate some of the pressure that sitting causes your spine. It doesn't look that sexy sitting on top of my office chair, but it did make my back feel better and I am no oldster either at 31 years old.