I've got a bluetooth GPS unit which connects to my laptop to log traces.
I also have a Garmin etrex Vista HCx, loaded up with OSM data, to make mapping new areas easier.
I primarily cycle and walk to obtain traces, and take photos of street names and POIs.
I primarily use JOSM running on GNU / Linux to add and edit way points and POIs.
I reside in Melbourne and Sydney, mapping anything around those areas and in-between :)