My research reveals that there
are a few microwaves that will allow you to defrost food by weight or by a selected time. Unfortunately, they're all pretty small and don't have the best reviews.
I think I've settled on the
Panasonic Microwave Oven NN-SN936B Black Countertop with Inverter Technology and Genius Sensor, 2.2 Cu. Ft, 1250W. It has a ton of outstanding reviews and I can get it $30 cheaper from Office Depot. DEAL!
It has a turntable (on a stupid wheelie tripod thing like the old man had), but since I'm not an old man with palsy, I predict it won't get that dirty and I won't have to clean it nearly as often.
It's also got a turbo defrost option (faster and more even thawing) and will defrost foods of one to two pounds without having to fiddle with it.
Happy dance!