Finally got my dryer working. Total cost of parts was $55 (got a 10% off coupon from the phone book!) and about 12 hours of feeling my way around the innards of the dryer with a bunch of pieced-together tool sets, a multimeter, and a how-to-fix-your-appliances book. Beats $230 for a new one any day, and it kept me out of trouble for a few days and I learned a lot about my dryer in the process.

Thankfully the weather was warm enough here that we could line-dry for part of the time that the dryer was down!