Profoto's off-camera flash system has been referred to, since it's introduction last year, as the "game changer". Don't take my word for it. Visit a Profoto dealer and see for yourself.
If you need a little help, it's just around the corner, not to mention an introduction to some outstanding artists from all over the world! Grab a cup of coffee and then check out the archives. You won't be disappointed with the wealth of information you're about to discover.