It helps to have the right wattage soldering iron, too. A nice Weller 25(?) watt (maybe they are 23 watt) and a big Weller gun (I think they are 140 watt), for the big soldering jobs like big cable onto big connectors. I have wood blocks attached to my vice jaws so that the metal of the vice doesn't act as a heatsink. I also have the gatorclip/magnafier thing from Radio Crap, but it's usually pretty worthless but is handy occasionally if you can get the damn thing in the right position.
W