"Powder" nutrition is always a good idea post workout. Or, as mentioned, go and eat 3 or 4 cans of tuna. Whatever you feel more comfortable doing.
Working out 7 days a week is a bad idea. You'll hurt yourself if you aren't careful. I came down with wrist splints, as i call them, because of improper technique and intense working out for 6 days a week. I took a month off from the gym, but I'm back at it. Now i keep it around 5 days a week, and on the days off maintain a good cardio workout, though you should have cardio 5 times a week as well. One day of the week must be a rest day. The rest day is essential or you'll burn out quickly. Don't think usuing wrist guards or gloves are for pussies; for some reason a lot of people think this. They can really help your technique and prevent wrist injuries, as well as give you much better grip on weights.
Mike, it depends on what kind of results you want. Do you want to get "huge"? Or do you simply want to maintain your weight and muscle size? To get "huge", your workouts shouldnt last more than an hour of weights a day. Lift heavy, but if you are doing over 8 reps you aren't pushing your muscles to thier limits. Always stretch for 20 minutes before and after to prevent injury as well.
To maintain, make sure you are using light weights and doing plenty of repetitions. I'm sure most people arleady know this. But whatever you are trying to achieve, make sure you keep your diet right and full of protein. After working out is the key period, when your muscles are "thirsty."
