I haven't read the thread, mettafuture. But I think you'll get much more bang for your buck if you order the Majjhima instead of Jhana advice from Mr. Snyder. In truth there's no magic bullet to Samadhi. You watch the breath, you lose focus, you bring attention back to the breath, rinse and repeat until it sticks for a while and voila. These kind of books like to talk about the immense pleasure of Jhana and what not, but in actual fact when you start reading that kind of thing you're most likely going to be motivated by sensual desire, which is of course one of the things preventing you from 'getting it' in the first place.
I had a book by Shaila Catherine a while back, and while it was an encouraging read, as far as getting motivated for meditation practice, it didn't really tell me anything I didn't already know.
The Majjhima on the other hand, if read thoroughly, will give you a lot of knowledge about what is and is not the Buddha's message. You start applying the message to your day to day life and it's a real joy when a verse from a sutta pops into your head and you suddenly understand it on deeper level. That's priceless stuff.
Just my take
"For a disciple who has conviction in the Teacher's message & lives to penetrate it, what accords with the Dhamma is this:
'The Blessed One is the Teacher, I am a disciple. He is the one who knows, not I." -