John I am a huge fan of hand cut dovetails.
First and foremost, its a hallmark of good workmanship. When someone asks you "are those hand cut dovetails" no matter what you say, or how you say it, if no is in the answer and that you used a jig, they are not as impressed. Myself I find myself constantly checking dovetails for the tell-tale nick of a saw when I am around antiques or any other kind of dovetails. Yeah its a sickness...
As for instructions. I am also a huge fan of Rob Cosman. I met him when I worked for Lie Nielsen and he's a great guy. I have his video too and learned a lot from him. I think I differ in that I pop out my waste with a chisel and not with a fret saw, and I do my pins first and not my tails. Those are all little things though.
Still I will give you a secret an old shop school teacher told me years ago. And while I promised I would never share it with anyone, much less on a public forum I will for the good of all woodworkers. Hand cut dovetails are actually easy to do. The secret is keeping everything marked, cutting to a line and careful chiseling. But yeah they are indeed easy.
Oh one more thing. There is no way I can describe to you how content I am just being in my shop hand cutting dovetails. To say its a joy is such an understatement. There is no way I would give that up for a noisy router and chunky looking template and dovetailing jig.
I have no intention of traveling from birth to the grave in a manicured and well preserved body; but rather I will skid in sideways, totally beat up, completely worn out, utterly exhausted and jump off my tractor and loudly yell, "Wow, this is what it took to feed a nation!"