From now until February 28th, Discover Bank is offering a $50.00 bonus when you open a CD account with a minimum of $10,000. You must use an offer code and open the account online. We have found several offer codes, which are all re-usable and can be passed along. D00741, D100739, D100816 and D100819 should all be valid offer codes. See the details and open the account here.
Discover Bank has pretty good rates, currently offering 2.75% on a 1 year CD and 3.25% on a 3 year CD.