After looking at your background and training I say go up to RPI and get a masters in technical communications. With that you can write instruction manuals for equipment or software (either "in house" of freelance), write for technical magazines or websites, become an instructor/trainer for a company, etc...

My wife did this, it took her a year to get the degree (she entered with a BA in English). Once she graduated she started her own business doing freelance writing of instructional manuals for different manufacturing companies. That lead to a permenant position with one of them. She originally planned on going back to it when the kids got older but she found that the same skills made her a great homeschooler. She's now using those skills to create homeschooling "classes" for other families. Unfortunately, she doesn't charge anything for them.

Anyway, just a thought.

-Blast