The smith machine I don't really use, except for shoulders. I only use it for shoulders because using the 70lb dumbell for the shoulder presses was getting kind of hard to put up there myself. I don't do the military presses for shoulder either anymore because I popped my shoulder out one day doing those (and it was light weight! only 35lb on each side!). So now I just use the smith machine for shoulder presses.
I don't really LIKE it that much though because it is a very constricted motion, and it is easier to cheat on it than it is to cheat on a free weight bar. but I use it because thats really my only option for right now. Also, doing weight on the smith machine seems alot easier and makes you feel alot stronger. I don't know if the bar is lighter or its just cause its constrained in those racks and you can cheat more, but I can bench press and shoulder press alot more on the smith machine than free weights
I personally am not gettin big and muscular, I am just staying lean and cut. I currently weigh 170-175lbs and I am pretty cut. I benched 225lb 5 times the other day, had a little help on the 6th one. As for shoulder presses on the smith machine, I do 185lbs about 7-8 times. My back and legs are pretty strong, my 8 pack is almost back, and my biceps and triceps are pretty good as well.
now I just cant wait to go to the beach!!! cant wait TO GRADUATE!!!!!!!!!!