Update 10/31/08: The money market promotion is now listed at the bank's website. It appears to be available at both of the bank's branches. A reader has informed me that a branch visit is required, and it's only for Illinois residents.
This promotion doesn't seem to be listed at the bank's website. A reader mentioned this in the comments, and I just called the Taylor branch for more details. According to the CSR, it's only being offered at their Taylor branch. There is no maximum deposit, and there is no checking account requirement. New money is required. The promotion's official launch is Friday (10/31/08), so it should last for a while, but there is no guarantee.
My last post on this bank was on October 15th, and it covered the bank's special 4.10% 6-month CD which is still available (see rate table).
The bank has some solid financial ratings for soundness: 5 stars (superior) at BauerFinancial and 4 stars (sound) at Bankrate.com. Both ratings are based on 6/30/08 data. The bank has been FDIC insured since 1961 (FDIC Certificate # 30570).