What I’d like to do is design a PHP page that I’m able to send out to a potential client that ONLY displays a list of certain projects (WP posts) that I’ve preselected for their presentation and send them to that URL. I’m aware that I’ll have to design this page in PHP and have it tap into WordPress for the posts. I’m guessing it might have something to do with setting up an array of the posts in PHP and injecting that into the WordPress loop?
If you’re going to be doing any serious WordPress customization you should read those pages fully as they answer most beginner questions. And in your particular case you are looking for the ‘post__in’ parameter of query_posts.
Best of luck and keep us posted on how it’s going.