well, I am 6'3, 255 lbs, and a fireman, I think I'll be alright moving them

But yes, they ARE heavy, I couldn't care less though, that kind of thing has never bothered me. Before my KPA rig, I was using a 2 head, 6 space rack that weighed probably 250 lbs atleast, and 2 4x12s! Needless to say, I am used to the weight. I bought 2 mostly because they sold me on the stereo, the effects sounded fabulous. However, I have never used stereo effects before, so that is probably some of it right there, I am quite the newb in that area

I will probably only use 1 more than likely live, 2 will probably take up more room than I would like/the band would like, so one should suffice.