In reply to Scarab9:
I find Ashton a little terrifying, and this attitude isn't helped by the local newspaper full of, um, incidents, which just bewilder me. I have led a sheltered childhood. If you want Ikea, you get in and you get out.
I work in Clayton, and commute in on the train from New Mills to Ashburys, sometimes cycling (never, ever driving - have you seen the A6 in rush hour?). If you can go a bit further out, I would. Staly-vegas also has an interesting reputation but nothing like that of Ashton. Glossop, Hadfield, Padfield, hell, even Marple might be places to consider.
Working where I do, I also know quite a few people out in Mossley which is considered nice to live in, only hampered by public transport. Also got friends in Chadderton and Middleton which feel kind of OK to live in.