Hihowaya and welcome to the Saloon. <Barkeeper, get this gentleman something from the good shelf. Not the stuff you give the tourists>
Hmm, where to begin? following the storm-drain of consciousness...
1) I'm going to depart just a bit from accepted wisdom and suggest that, before researching schools, you research locations. Narrow it down to 2 or 3 or 4 cities or areas where you would like to live. Know where you want to be first, then research the unis/colleges/training centres/re-oh-my-f'n-gods-cruiters, agencies and foundation-garment programs in those places.
2)
where do I find job ads that aren't desperate employers and recruiters
If you ever find out, let us know your secret.
What has worked for me in the past (kinda, sorta, in a twisted way) is that just digging through the dross you will occaisionally find something of real value. Not a gem, but something workable, something that you can handle without a lot of rectal discomfort. The good jobs I've had I've run into because I knew someone who mentioned to me, "Hey, you should check out these guys. I think you'd be a good fit"
3)
My only trepidation about going to China is that I'm a picky eater, I don't like eating new things.
What am I laughing about? That was me when I first came here. Still is. Oh, and I get very uncomfortable in crowds as well. You'll do fine.
4) Career planning. Getting a teaching position that is a step above
whale shit teaching Oral English can be largely a matter of luck. See 2) above. China doesn't always reward professionalism in her own teachers; it's just not something they seem to value highly here. Furthermore, foreigners don't have a reputation for sticking around. Some of us do though, and a few even find rewarding challenges of the sort you're looking for. If you peruse the teacher's tips section, you'll get a pretty good idea of who some of these people are and what they talk about (besides who is buying the next round). If, after 2 years here, you're stuck in the EFL rut and can't find a better job here, consider taking a job in another country. I hate to discourage anyone, but it's your life, you have to know when to cut bait.
But hey, good hunting.