I have heard of it, read books by guys who do it, and there is a blog by a guy who runs his practice like this. but I would personally never work with a therapist who had such a policy. I think it is often more of a hold over from traditional psychoanalysis. It seems to me like renting a space in the guy's appointment book.

I have interviewed over 12 therapists in the last two years. I found them through referrals and sites like psychology today (where there is often a little blurb about how they practice) - call them up and talk on the phone, make an appointment and interviewed them.