The National 4X at Cheddar (Sunday May 11. http://www.broadwayhouse.uk.com. We rode the course last week, it's very fast and, Doddy reckons, full of crashes.
Next weekend there's the NPS XC race at Catton Hall, South Derbyshire (May 17/18. http://www.catton-hall.com
There you'll see riders of the calibre of Oli Beckinsale.
You know you should get out more.
For future dates check these links: