I got an excellent quote from Greenlight of £482 for 25yr old, 3 year NCB in a low risk area for 10k miles pa. Only hitch was they didn't like my gf who has only 2 years driving experience which pushed it up to £600. Still excellent considering I could have the car remapped for that price but since I'm probably not going to this year I'm still quite a bit cheaper with norwich union.
Also worth mentioning that they wouldn't cover my g/f for commuting purposes....