Here’s a quick reference guide if you have questions about your DNS settings:
There is no need to change your nameservers just to point your domain to a separate host. I’d recommend keeping the default nameserver records that GoDaddy will create for you when you purchase your domain.
Here are two of the possible nameservers you may have:
A record (pointing your domain to your hosted site)
To point your domain to the new hosting site, you will need to change your A record to the following:
More info: Adding or Editing A Records
MX records (for Google Apps mail)
Google Apps is a great (and free!) tool that will let you use your domain for email (i.e. firstname.lastname@example.org vs email@example.com). Once you’ve setup Google Apps for your domain, here’s how you need to setup your MX records at GoDaddy:
CNAME records (for Google Apps calendar / mail / docs…)
If you’re using Google Apps, you’ll automatically receive a not-so-friendly or memorable URL for your email / documents /calendar. Once you’ve registered your domain with Google Apps, however, you can change the CNAME records at your domain registrar to take advantage of friendlier URLs (e.g. https://mail.joescompany.com instead of https://mail.google.com/a/joescompany.com).
More info: Creating Your CNAME Record: GoDaddy.com