At 320lbs of pure muscle I think I can answer this better than anyone else here - and the answers are already on my blog:
Muscle Gain
Make more time, saying you only have 1 hour is saying my health is not very important too me. MAke up your mind. Throw your TV on the sidewalk is a great way to find more time. Limit your computer time. Stop reading magazines, newspapers, etc.
Everyone has time to exercise if they want - up to you. Aim for 3 1hr weight sessions a week for good gains though.