I wouldn't worry too much about the degree in CS if you're already in the industry. Unless you want to do something very specific, your work experience will trump your academic experience in nearly every case. I don't have a degree and have been able to move companies a number of times, as have my other engineer friends without any sort of degree.

Unless you want to do some serious crypto research or something like that, more schooling probably isn't required. You'd be better served getting a CISSP or something.

I was going to school for physics and do plan to go back because I want to be in that field doing research eventually. If you want to do something similar, then school might be worthwhile.