My most "kua zang"... I carried a stealth reporter 400 and a Compurover up the plane. Nowadays I just do make do with a normal haversack and the stealth reporter.
Things inside? 2x Laptops, 1digital body, 1 film body, 7 lenses.
i know I breach airline regulations on size and weight. but i've not encountered any problem before. in fact, come to think of it, i've never had any problem with such things when travelling as a civilian.