Also, I wouldn't be opening an account with ING, their rates are relatively low at 4.5%. You can get 5.05% with Emigrant or HSBC (it is 6% until April 30th, but by the time you get enrolled it really would only be a few days of 6% interest).
I have an account with all three. I have $1 sitting in ING just in case they ever raise their rates significantly. I like Emigrant the most.
The Ultimate Interest Rate Chaser Calculator » My Money Blog
This link is kind of interesting to play with some numbers to see how much you would gain/lose by switching to different interest rates.
Good luck.