Hi
A Fihmonger is a retailer of fish and seafood. A 'dealer' usually indicates a distributor or wholesaler and is a different level in the supply chain. That said, there's probably a distributor who also retails!
Racheee - I'm all for technology - except I don't have time to watch TV! what a luxury!
Brigette - I know nothing about the Social Worker type industry, although, I seem to recall that workers in this field are in demand including people from abroad. Good luck with your job hunt! it boils down to part of my response where you'll need to look at the actual salary you'll be getting once you secure a position and working out your mandatory costs from your take home pay as to where in Manchester you can actually live.
rightmove.co.uk is a good resource which I'll assume you already know about, if you can and do live with your sister, perhaps with agreement in splitting the cost, you could look at living in the pricier areas ?
I used to live in Sandbach (Cheshire & around 25-30 miles SW of Manchester) until I was 10, and we had friends of the family in Manchester, in the times I've been back there for business or seeing friends, I do like the place as well !
Cheers, DtM! West London & Slough UK!