Here are a few 2 lights setups:
http://www.lighting-essentials.com/online_lighting_workshop1.htmli had a link to a guy over at pbase, he had setups for each of his shoots, quite nice, can't find it
there are a couple of books that do the same
If you are asking what else do you need, i'd say a background and additional lights for the background, reflectors, possibly a flash/light meter
Are these the flashes from Walimex?