Hi and welcome :)
Also from Wiltshire (Trowbridge to be exact). Been here for 4 months so still finding our way around, but our things are finally here so feeling a lot more like home!
Seek is a good website, also do not forget the Sat Advertiser for job listings.
I think there was a recent post for a job seeking event coming up that will help you with cv & interview techniques.
As far as networking, there's often a PIA get together I think 1st Sunday of every month which is good. Also when we arrived and went to our local council we were given a directory that lists clubs in your area.
How old are your boys?
Always happy to get together and meet new people so give me a shout :)