Only discovered OSM in October 2007 via a link from Slashdot.
I've started on the street names in North Watford and cleaning up some of the missing roads etc.
Also "built" my first four miles of road here: http://www.openstreetmap.org/?lat=54.7868&lon=-1.7515&zoom=13&layers=B0T
Hopefully I'll build more in the summer.
Etrex Legend HCx
and two DF bikes (one standard geared and one a fixer)