Apologies in advance for my lack of knowledge and thankyou in advance for the knowledge you all will give me it's extremely appreciated..

The name says it all, all.. Basically I started working out a week ago and I’m wanting to get into good habits early – I’m getting too much info from everyone so I thought I would ask the experts..

I have EXTREME desire to change as you all do or you wouldn’t have ever visited this site and i understand it's not a thing that will happen overnight..

I've got a program at the gym and I know what to work out etc
My problem lies with my diet, how much I should be eating, what amount & when etc to bulk up because I want to get it right from the start..

I've read of a few threads and they are a great help but I could always use more help - knowledge is power..

I'm a 22 year old male, 175cms, 80kg
(5ft, 7 & 176 pounds right? Sorry I live in Australia and we use different measuring systems)

Currently my program demands I work out 3 times a week (weights + cardio (roughly 2 hours total) & 1 time a week just cardio (one hour total))

I'm also in the process of looking for a treadmill for my days off so I can run for an hour or so outside of my gym program, is this a good idea or is it overworking my body?

I’ve been to GNC and current supplements will be from now on –
2 multi vitamins a day – MEGA MEN
2 fish oil tablets a day
2 intra-x-cell (beta-alanine) tablets a day on non workout days and 4 on workout days
Steel edge pre-workout formula - before workout
Lean gain protein powder every day and twice on workout days (one scoop each time)

Any good or bad feedback on the supplements ?

I've started with the lean meats, low fat products (dairy etc), whole grain breads, no processed meats and all the other fine stuff I should be eating..

My main problem is how much should I be eating each time to bulk up and lose body fat & ANY OTHER TIPS you all might think would be helpful for a brand new bodybuilder with limited experience.
ANYTHING WILL HELP ME!!