if you have time, i reccomend doing this workout i found on T-Nation
http://www.t-nation.com/readArticle.do?id=917176 - read the article too. it's basically a round table of 3 seasoned trainers and bodybuilders talking about their theories of how actors like Tobey Maguire, Ryan Reynolds, Hugh Jackman etc are able to pack 20lbs of muscle in 3 months. its a good read. there's a link to a workout that Christian Thibodeau has created in there.
i didn't do the supps except protein and creatine and i've put on a good 15 lbs (this is after i stopped the creatine). i also put more leg work in it too, and keep in mind its not as balanced as a regular routine woud be because the program is designed to just 'get the look'
you have to decide though, whether you want to put on the muscle or be cut, bc if you want to get big you gotta eat. i've found even when i eat super clean when i'm bulking, i still have a bit more pudge, than normal. good thing though is i can usually work it off with a good two weeks of intense cardio and a cutting program.
if you do end up getting a personal trainer at least go with one that has a good track record (like has pictures of his clients and there results). i work out at this neighborhood gym thats no frills. looks like a place where rocky balboa would workout. seriously, there's no music, a max of 10 cardio machines, def two sets of dumbells that go up to 170, in addition to the various equipment that looks like its used in a strongman competition like a concrete ball thats 2 feet in diameter. The guy that owns the place and who i've trained with puts on a bodybuilding show everyyear and has been in a couple of mags. he's real, not a obsessive meathead, and endorses all natural bodybuilding. people don't care about how cool your new nike dri-fit outfit is here.
i find t-nation to be a better read than bodybuilding.com and just discovered the articles and workouts on
www.animalpak.com
i by no means live off of them, but i find the information on these two sites to be more sound than other sites i've been too.
you just gotta work your ass off. get the attendants at your gym to help spot you, and make sure your pushing out one more rep than you think your limit is.
P.S. i swear by the almighty deadlift and squat. i've read articles that say it releases more testosterone helping you put on muscle all around. besides that, its always better to see a guy with good muscular legs and a maybe not so big, but toned upper body (i.e. David Beckham) than it is to see a guy with a huge upper body that looks like he's teeter tottering on toothpics for legs.
