Been researching for the last few weeks. Please let me know what is right/wrong, and any other input to achieve my goals. Thanks in advance!

Goal: Change lifestyle, lose beer belly, lose the double chin,
Gain A Lot of Mass.(major priority!) Then later get somewhat cut.

Current Stats: NOOB, 36, 5'8", 216lbs, out of shape (cardio/body wise).

Routine I am thinking of:
M: Legs and or abs/cardio
T: Chest/Tri
W: Cardio/Abs
Thur: Back/Bi
Fri: Shoulder
Sat: Some form of outdoor cardio, riding/walking, etc.
Sun: Some form of outdoor cardio, riding/walking, etc.

Schedule:
5:30am- wake, eat something (need help here)
6:00am- at the gym
7:00am return home- down protein shake, creatine drink (please advise on the best, right now I have bought Muscle Tech- Cell Tech)
7:45'ish- breakfast- oatmeal, eggs, etc.
10:00am'ish- snack- beef jerky, protein shake or something on those lines.
12:00pm- lunch- either tuna, chicken, turkey sandwich, etc
3:00'ish- snack- beef jerky, protein shake or something on those lines.
6:00pm'ish- Dinner- here is where I falter- I am the cook and have wife/2 kids. So sometimes it's pasta, it's pork chops, steak, chicken, etc. This is the only meal of the day that I might have to cheat on, but I am intending on doing smaller portions if this is the case.
9:00pm- cottage cheese, and maybe a piece or two of beef jerky or turkey.

Supplements: Please let me know of alternatives, ETC.
Creatine: right now I have a jug of the Muscle Tech Cell-Tech (after research I am finding that there are more less expensive and (better) ones?
Protein: Optimum Nutrition
Multi-Vitamin- right now I have a bottle of Ultra Plan Ultimate Plus from Hi-Health (advice?, I like taking one pill that does it all.)
HOT-ROX- I took this before and was amazed at the results. Tried a lot of others but this one didn't give me the jitters or upset stomach, etc. I like it and love what it did, and I will use it in cycles when I hit the wall.

Thank you for any help you can give! I want to redesign my entire life and hopefully influence my wife and children to eat healthy and be more active.