We work in partnership with the local Edinburgh Cycles shop, who supply us with discarded bikes and parts (and they have a great showroom and service centre), and they are <1/2 mile from us on Oxford Road, opposite Whitworth Park/Moss Lane East.
We also recommend the Bicycle Boutique near MMU/All Saints, behind Sandbar/next to Sugden's sports centre; a great little local-run shop/workshop that shares our ethos of keeping bikes on the road as cheaply as possible.
If you live in the vacinity of Stockport and have a bike to donate or are interested in bicycle mechanics/training, Cycles Recycled is a fantastic project.
We also recommend the website and membership of CTC, the national organisation for cyclists. Excellent advice, membership benefits (including 3rd party insurance, magazine & e-newsletter and discount at Wiggle), lobbying, and information: all things bicycle-related.