Hi some basic questions:

1) I was just wondering what steps I should take to setup a second (or more) site(s) on the Drupal 5 Turnkey server I just set up. Could some one point me towards a tutorial or checklist for setting this up? (aside from the Drupal install, thanks)

2) I'm currently using DynDNS and my router to point to my server, which is super easy to set up.  Now that I'm looking at having multiple sites on my server, is there another, cheaper way of doing this? 

Thanks to all involved, I have set up my own servers in the past, but this was by far the fastest and easiest!!