Holy moly high interest rate.

I have some money in a bank account with ING Direct, which I keep there so that it isn't whim-accessible. But, according to this link, the interest rate between it and the highest one just isn't worth the effort of moving funds:

http://www.money-rates.com/savings.htm

Especially considering that I haven't had any problems with ING Direct for the years I've had the account!