oddsod - 8:10 pm on Dec 30, 2009 (gmt 0)

I'm not a noob but it seems like such a basic question that I thought this would be the best place. Mods please move if necessary.

I own several sites. On one of them I wish to setup a blog and for mysite.com/blog/ to be on a different server at a different hosting company. Visitors would still see mysite.com/blog/post-url.htm in their browser but the whole blog would reside elsewhere. And visitors can still browse mysite.com/any-other-page.htm at the current host.

I know how to setup a 301 in htaccess but, obviously, that's not what I'm looking for here. Any advice?

TIA