In our engineers job we get in tought much too often with dwg and dxf data. And much too often I told myself (and was told by my colleague Silli) that I should finally port the dxf/dwg import tool that the old JGrass borrowed from the gvSig community.
And here is finally the first step. The dxf import:
1) got to the usual import menu and find the dxf/dwg import
2) choose dxf import and insert the dxf file to be imported and the new shapefile to be created. Since dxf has no idea about projection, choose also a projection for the imported data.
3) push finish and wait. One layer will be created for every internal layer of the dxf file, with the data type that better suits the jts type. In this case I only had a road network:
Now have to test other types and files. Then it's dwg funtime (I hate those proprietary formats!). And then it all goes into uDig. Still have to think how though, since the license of this plugin has to stay GPL because of its prior licensing. Hmmmm....