resources are easy as long as you have access to the internet, you can get anything and everything you need from there (i like BBC learning, TES, Topmarks and kidshealth.org)
curriculum is easy to, as with HE there isn't one! though personally i stick to NC standards for Maths and English using the CGP books from WHSmiths. everything else is covered under a "Topic", we do a different one each half term, previous topics have included Reptiles, WW2, Space, Brain, Senses.
I would suggest you go onto Yahoo Groups and search for Home Education xx area to see what the groups are like where you are thinking of moving to. They will also be able to guide you towards HE friendly childminders that would help you with your working hours cover.
HE can be as cheap or expensive as you want it to be. dd goes skiing with a HE group once a fortnight which is £7, the other day we did a pottery session which was £6, next week we are going on a day trip (victorian school/life) which is £9. but going on a bug hunt will cost nothing but your bus fare/petrol. we also rarely buy study books, we spend a lot of time at our local library who are always getting books transfered in from other library branches for us (our local library is quite small)
As for socialisation, again, much will depend on your area. i have found that dd has way more friends now than she ever had at school (and she was a popular child at school too), much wider and more varied people too.
look into scout/brownies/dance classes/drama groups locally too.
sorry if i've gone on, but for us, HE was the BEST decision we ever made and it is something i am quite passionate about!