Dont be like me and buy a bunch of supplements instead of food i did that once… just sayin!
Also dont worry about rep schemes, specialised equipment, the perfect program just find a program recommended by others(as above )or find one of the countless others on tnation. I did this once i did a bodybuilding split and made zero gains. And went to the gym and just did curls and chest work randomly and hour long abb workoutsBut now i train everything twice a week with good progress.
Dont worry about fat gain as a beginner youl lose weight and gain muscle at the start anyway… so eat alot. (Im a beginner to and i lost a shit tonne of weight and gained muscle) i used to be fat.
I have gotten alot of advice in various threads of mine So check those out im sure itl give you a bit of a laugh and theres heaps of good sdvice from lots of lifters