Update 11/01/2008: Rates have changed. Please check the credit union's website for the latest rates.
Delta Community Credit Union is offering a 5.65% APY 60-month certificate of deposit. The minimum deposit is $1,000. One nice feature of this CD is an early withdrawal penalty of only 90 days of interest which is less than the typical 6 months of interest. Please see rate page for more info.
Credit union membership is open to members of the GettingAhead Association. This appears open to people from any state who pay a $5 membership fee. You can be immediately eligible for credit union membership if you're a resident of one of several Georgia counties in the Atlanta metro area, work for one of their Select Employer Groups, or via family (not just immediate family). Please see the credit union's eligibility page for more details. Membership requires a minimum $5 deposit into the savings account.
The credit union is federally insured by the NCUA (Charter # 66357). It's a large credit union with $2.55 billion in assets and 166,151 members as of 9/14/07.
Thanks to the reader who mentioned this CD in the finding deals post.