If you're in the north or east of the region, you probably should fill out http://www.norwichareatransport.org/haveyoursay/questionnaire.asp and give your views on Norwich Congestion Charging and the Northern Bypass.
If you're in the south or west, you might like to support http://www.castiron.org.uk/ or http://www.cambrail.org/ who are taking up the 1990s Cambs CC plan to reopen the north Cambridge railway.