Well you can do this in a couple diferent ways, but my best bet is on just using the mail() function to email the form data to where ever it needs to go. You can use it as many times as you like on a page, just don't go overboard as you might end up timing out the page.
There is an article on this site all on using the mail() function, I believe it was titled "Sending MIME Email With PHP", check it out as it'll tell ya way more than I would in a forum message.
