I saw this mentioned the other day but can't find where, so here is the Video mentioned in that post.
http://www.planetphotoshop.com/old-repair.html (http://www.planetphotoshop.com/old-repair.html)
Pete
:up: Good video tips Pete.
Peter, thanks for posting a very helpful video. I think with difficult photos that have parts missing, using the lasso tool and transforming works the best. I also learned something new on that video that you could lower the opacity of the transformation while moving the section into place. Always before, I would OK the transformation and then lower the opacity to see if I needed to transform again. Dave Cross also made mention of using a slight feather, which helps prevent hard edges. I use this method a lot and with the use of short cut keys, it works pretty fast and looks better than cloning.