I don't think anyone on here has to worry about getting 'too big like the current pros'. Most of us can train/eat like the top pros now and will never come close. So let's toss that part aside. Training, diet, and the overall bodybuilding lifestyle have greatly evolved (and continue to evolve) over the years. Years ago (Arnold and his buddy's era), more volume was the name of the game. Workouts lasted much longer than they do now. And they often trained twice a day at times. Now? People don't hit it with as much volume or frequency, both which play a big role in recovery/growth. Diet was extremely different as well. There wasn't drastic off-season gains or competitors dropping 40lbs of weight in order to hit stage-condition. Maybe if Arnold and his buddy's had the information we have today, they'd look a helluva lot different than they did back then.
Bottom line? Find something you like, both training and diet wise. Use the aforementioned bodybuilders as motivation and inspiration. But when it comes to how you want to 'look', train to look the best YOU can look.
Very similar to CarbBackLoading which works wonders. I think every serious lifter should definitely read this and apply its principles every now and than especially if you're trying to diet down for a photo shoot or competition.