I've had to do an overweight landing on a 757-300 about 5 months ago.We air returned to SJU because of a reported vibration from one of the girls in the back. We were 20,000 lbs over MLW and no dump capability. My first officer did a superb job of landing on speed on target without an excessive rate of descent. We pulled back out of the gate about an hour and a half later after an inspection and headed home. It didn't seem like a big deal.(Except the paperwork of course!)