Age 70 1/2?  Make sure and contact your IRA custodian and request your MRD for 2011.  They have done the calculation and will send out a check or deposit the MRD in your bank account.  If you have several IRA accounts you can do the calculation on the aggregate amount of your IRA's and withdraw from just one account

Still have a 401k or 403b retirement plan?  Make the call..Many of these plans will send money out in Decmber automatically.  Call and see how your plan distributes the MRD.