DO BOTH: You could, if you planned well and you filled up the tank and you spread the fun out over two days. Since we already gave a nod to the cowboy to-do, let's turn the spotlight on the San Bernardino bash. Steam Engine 3751 will be in the house -- or, er, on the tracks, rather -- as well as modern trains. And, yep, costumed people will be walking around in Stetsons and spurs. Train fans will be plentiful, so expect healthy crowds and entertainment and other warm-weekend-y activities. Check out tickets for the steam excursion and happy travels, cowpoke.