Back to the topic: I'm in the same position here looking for a place to park some rollover IRA's into the brokerage account and to earn some miles in the process.
I have to confirm that getting miles directly is not possible, however, here's another angle on this - Citigold:
http://www.citibank.com/us/cbna/citigold/

This is premium Citi account bundle, it costs $95 annual. You can agreagate brokerage accounts including IRA's, checkings, savings, CD's, home equity lines/loans (!) and some others. By maintaining 100K total you avoid quarterly $25 fees.

You get a few extras here and there, but here's what relevant for miles junkies: they waive the fees on:
- Diners Club $95
- Platinum Select® AAdvantage® World MasterCard® ($85)
- Premium Citibank® / AAdvantage® Debit Card ($60 ?)

Does anyone here own Citigold? Any opinons?