Myoplex items are great to use. For me I didn't change my whole diet and I still lost a ton. Depends on your physical set up on what will benefit you. I will recommend a book for you. Body for Life. This is the workout program I use and my father used the workout and dietary plan and lost tons too-he lost close to 75.
The diet is actually easy and designed to be an easy life long change. Of course changing anything especially diet takes work, but not too much here. It even gives you an example shopping list. Somethings you might already be purchasing. Look it up at
www.bodyforlife.com