lucy24 - 7:54 am on Feb 18, 2013 (gmt 0)

We need more information. For starters: what do you want the user's address bar to end up saying if they start out asking for

mydomain.example.com/some-complicated-page-name
?

In one sense all subdomains are forwarded, because physical directories don't exist in four dimensions. With whatever your host is currently doing, do requests for

subdomain.example.com/
and
subdomain.example.com/pagename
and
subdomain.example.com/directory/pagename

all end up at

example.com/subdomain/
?

Next question is how much other rewriting will be happening. When people say "blog" I hear "cms" and those tend to come with their own htaccess files that you have to work around. I'm sure Drupal does. In fact I'm surprised it doesn't already include a section on subdomains.

And, finally, we need a moderator, because I don't think this is a domain-names question at all. Those questions are about selecting names for the best SEO, and squ-- er, I mean registering potential names-- and the reasons for going with one TLD over another, and the Hyphen Issue, and...