pistey, DH got a road bike a few months ago. He got himself (after buying the bike) some insurance through the British Cycling. He then realised he could have got his bike a lot cheaper had he become a member before buying the bike.
I won't lie to you though, the hobby has cost a small fortune. Mud flaps, tool kits, pump, little pack for the bike to house such things, arm band for iPhone so he can listen to music and use run keeper, heart rate monitor, helmet, shoes, peddles for said shoes, Lycra. Although Aldi at the moment have got some fab cycling gear in - DH got loads of stuff, it is all lovely quality too. I had previously bought him a pair of shorts, a top and a thin jacket which came to £125 from a cycle shop. He got stacks of stuff for £85. Worth having a look.