There may be no better way to save for retirement than by opening an IRA. With all the tax benefits of a 401(K), and all the freedoms of an ordinary brokerage account, IRAs offer investors an opportunity to control their own financial futures. But selecting a brokerage for your IRA isn’t always as simple as it seems. Today, we’ll look at two discount brokers, OptionsHouse and Capital One, to review what they offer IRA investors.