Ok, maybe not "QUICK" but here goes . .
A little info first. .
130 lbs, 5' 9", work 7am-4pm, and have a drive to get bigger!! I don't have a lot of body fat, I've always had a fast metabolism, my gut mainly comes from the beer . . . ya . . . haha
I used to weigh 110-115 up until I was 23. I decided enough was enough and started a weigh gaining program. I drank 2 carb shakes a day, 1 half protein and half card shake an hour before workout, then 1 protein shake right after. I took in normally between 3 - 5K calories a day with the shakes. I went from 115 to 155 or 160 within about 8 months.
Now, I got lazy about 14 months ago and haven't been to the gym since. I'm back down to 130 and have a bit of a gut

I just purchased the P90X program along with the chin-up bar and the bands. My goal is to get back to 160 and maybe even hit 170 if possible.
My questions are. .
1.) Should I be doing any kind of supplemental workouts or should I not do any part of the P90X and switch it for something else? (ie dumb bells insted of bands?)
2.) Should I be taking the same amount of shakes? I can't afford the P90X results and recovery stuff . . anyone know of anything I can pickup on the cheap that will aid in the building of muscle?
3.) Does anyone have any kind of advice for me regarding the kind of stuff I should be focusing on for greater muscle growth?
Thank you WAY ahead of time. I know that was a lot of info, but I'm stoked to start working out again, and ready for some help!