mod_rewrite redirect to subdir

Hey...

I'm trying to get a second domain set up for my site and I want to get the two domains to direct to different pages... basically, I want the following.

http://elgatodesigns.net/* --> /home/www/elgatode/* --> http://elgatodesigns.net/*

http://pr0p.net/* --> /home/www/elgatode/propNet/* --> http://pr0p.net/propNet/*

The thing is, right now, they both point to /home/www/elgatode/ and this is a hosted site, so I can't add VirtualHost directives.

I need a mod_rewrite expression that'll filter requests to pr0p.net/* and push them to pr0p.net/propNet/*, without affecting elgatodesigns.net

~n