You do not need to pre chill daffodils, but you do need to buy the right kinds in order to have them return and/or naturalize. If you need a list, do a search, I think there is a list of good ones for the south on another thread somewhere. I'm in 7b-8 too. My favorites are Campernelle, Hawera, Carlton, Thalia, February Gold, and Peeping Tom. Brent and Becky Bulbs are a great source of daffodil bulbs for the south.

You may go ahead and plant Daffodils now, as the longer they are in the ground, the better developed the roots will be when they begin to bloom in the spring. They won't emerge until after a chill period.
A UGA-caes Publication is attached, with recommendations for bulbs that are suitable for GA gardens. They indicate that all divisions and cultivars of Narcissus are equally acceptable.
This is a link that shows the various divisions of Narcissus, Daffodils being one of them.
http://daffodilusa.org/daffodils/div.html

If you are in the market for Daffodils, Minatures or Paperwhites and live in the Metro Atlanta area, the Growers Outlet in Loganville has several cultivars at very good prices.
http://www.growersoutletllc.com/ and click on availibility. The bulbs are near the bottom of the page.

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Here is a link that might be useful: Flowering Bulbs for Georgia