If you go to the SW website, it's advertising half price membership, so I think with the weekly fee it'll be £9.95.
I'm sure your carer won't have to pay, you only pay the first time at the end after you've sat through the class - at least thet's what's hapened in any one I've been to.
I would recommend the syns directory - gives you the syns of shop things.
I've never bought any recipe books, just do my own recipes and use ones off here.