Hiya Bugsy > it takes a while to sink in properly, even when you know.
IPSEA are fab, however they are somewhat hard to get through to. The NAS also have an education line you can call that gives pretty much the same advice, IPSEA is best if you have problems but if you want a starting point then I'd go with the NAS one as they have an answerphone and will call you. Also, the NAS HELP! course for aprents with newly diagnosed children is supposedly fab (we were meant to go but DH couldn't get time off).
There's a book called Autism for Dummies that has a good chapter on AS. Don't buy it, make a list of what you want then get your library to order in for a tenner a shot- you can always buy anything you want to have longer term. Also, your NAS branch could well have a lending library.
Having a DX of AS can leave you feelinga bit caught in the middle- yes your child has an issue bit its amazing the amount of services that aren't offered to kids with it. It is however wrth asking your local social services disability tream to do an assessment, we couldn't get much in the way of services but DS1 gets inviytes to SN rugby and cinema showings and the like- very useful.
Its also worth seeing if there is a NAS branch in yourarea that has a person who comes out to visit; there's one here and she does info on all local services, gives you a very handy info. file and can also help with DLA etc. They're also startinga befriender service (already going in some palces) for aprents / people on the spectrum- we just put DS's name down, you could consider that.
HTH and if you want anymroe info do cat me.