If it's your first time back in the gym in 12yrs, start with the basics.... food and hardwork. Make sure your diet and workout routines are solid, go with that routine, keep the diet for your goals in check and I gaurantee you that you see awesome results in 6-8wks. The body's ability for stunned adaptation will surprise you when you first get into it.
I'd perhaps include a good protein source like the one you mentioned and that should be good. After a while when gains have slowed, you could go about incorporating the and a good creatine blend.