Let me do a +1 for the Metcal soldering station suggestion. I have 2 older MX500 stations, those are the 13.5MHz version. Two-handed soldering can be quite useful and works fine using my full optical, prisma equipped stereo microscope (no LCD, no electronics, just glassware ;-)
Do note that the cartridges/tips used determine the tip temperature (essentially the Curie temperature of the tip), no adjustment necessary or possible. They are relatively costly, especially for specialised tips. I was very lucky to find a large stash of tips advertised in Germany, which I bought a substantial part of for real good prices. In retrospect, I have bough the whole lot..
Wilko
