TD Ameritrade is running a $100 savings account bonus that is scheduled to end on March 31. Here are some of the details of the promotion:

• Open a Save Yourself account by 3/31/2008
• Set up electronic monthly deposits of at least $50 within 30 days of account opening
• After 12 consecutive months of electronic deposits, TD AMERITRADE will verify that the deposits have been made and add $100 to your account.

One thing to keep in mind is that you can withdraw the money before the end of the 12-months, but you’ll forfeit the $100 bonus. The current yield of the account is pretty low at 2.75%, so I wouldn’t deposit more than the minimum amount.