Interesting thread, but I believe there are a few misconceptions here.
The name is no longer directly relevant to search engines. So many people have bought names just to lie to SEs that they ignore them now, same goes for meta tags. It is relevant for link popularity though,
Having a hyphen loses you a lot of type-ins, so they are worth less.
For adult sites, names are irrelevant for gallery submissions.
Name is important for building a free site, or tgp etc. and for type-ins. A good brandable fun name that catches the mind of the surfer and is easy to remember is best.