Bikeability training for next to nothing.

Bikeability is a great thing for people who have just started cycling or feel they need a brush up on cycling if they've been away from the bike for a while. They may help out if you want to build confidence in traffic too.
http://www.stalbans.gov.uk/leisure-and-culture/sports_physical_activity/ABC.aspx St Albans council. £29 for 9 hours of good training. A bargain.