Good site ... if the intention is to live in or around London!
Living costs here in Birmingham, the UK's second largest city, are noticeably cheaper than in the London area. Dependent upon type of job, OK salaries might be a bit lower, but that does not necessarily mean that there is a lower standard of living, given the lower costs of housing etc..
No sorry, I do not. A quick search on www.google.co.uk , clicking "pages from the UK" ... searching for ... cost of living ... produces lots of hits, but they tend to be from Universities giving details of the cost of living in their particular area.
Arm, gumtreee certainly doesnt give u a cost break-up of living costs in UK.it is an online community and is very effective if u are looking for accomodation, jobs and hosts of other facilities....