I've been doing Walsall, Mapnik doesn't show it, but the link on this diary entry does... Switch between Mapnik and Osmarender to see the difference...
osm.org/?lat=52.5848&lon=-1.9736&zoom=13&layers=0B00FTF

The other cool thing I discovered is the awesome visual diffs at:
http://www.itoworld.com/product/osm/area