I'd be interested in working on the world, and maybe regional maps. My style is quite different from those linked to, more 'pen and ink' with symbolic representations of features, with some watercolour highlights. I generally make my maps using Inkscape so they are scalable to suit your needs. I'm also familiar with the use of GIS and could provide GIS files for the raw data behind the world map, and regional views of that data in suitable projections for the regional maps to be built from by other mappers.
Here are some examples of my work: http://hai-etlik.deviantart.com/gallery/10457186