I would agree that putting 30 lbs of fat back on would be a mistake. My avatar picture is as fat as I ever get. I'm currently leaner than that picture, and still making progress. The more attention you pay to details in your diet, the more likely you are to stay lean.
Staying lean, for the most part, will have a positive effect on both aesthetics and health. Training the major compound lifts consistently will make you strong. The X-factor, as I said before, will be diet. You need to eat enough to support muscular gains, but not so much that you put on an inordinate amount of fat. Be willing to manipulate caloric intake based on what you see in the mirror.