explain your notation for your workouts? what does squat 4/6 heavy weight, mean? how many sets, what percentage of your 1RM are you using, how close to failure are you coming, are you going past failure?
Routine looks okay to me, except you'll want to balance out your pressing vs pulling motions otherwise in a couple of years you'll have that syndrome, i forget what its called but basically it happens when you do too much pressing and all the muscles on the front of your body become tight and you have a hunched over look to you.
i don't really like the way the bodyparts are broken up, but i don't see why it wouldn't work, given enough dedication, consistency and proper form
if you want a complete overhaul, we'll be happy to do it for you though
oh and go to the diet section to find out more about dieting.