Redroaster may still be Brighton-based but just see what has happened to Taylor Street Baristas http://www.taylor-st.com/index.html who are now taking the City of London (and Canary Wharf) by storm. Interesting eats.
The Cafe business for the professional operator - keeping up to date with what's new and interesting - written by Paul Cottrell, Turpin Smale Catering Consultants