Sounds like the best thing to do is leave them alone. We'll just stagger the grilling then, or else I'll go out and buy a bigger grill. Thanks for the replies.

Forgot to mention that in regards to the steaks being big, somehow they turn out so well that my wife and I inevitably end up eating a whole porterhouse each when we cook. I figure about 3/4 of our guests will do the same. With regards to the semantics of 'grilling' vs. 'barbequeing', we interchange both at our house anyway here in southern Germany. We are charcoal people and like to mix wood chips in for flavor.