Can "Refit" Be Used for USB Boot From External Optical Drive?

Since the new Mac Mini 2011 has no optical drive, how would one make a generic USB 2.0 optical drive act as a boot device? I have heard that a utility called "Refit" can alter the boot loading order and device choices in Macs. I suppose it is also possible that the new Mini may already be set up to boot first from USB. I would appreciate any comments. It would be nice to have some kind of optical drive boot option for Windows installation and other possible utilities that need to boot before the OS in order to work. Maybe I will have to take my external optical drive to an Apple store to find out. Hope not. I also suspect that a USB keyboard will be mandatory for "Refit" and the boot drive to be used before Mac OS X is loaded.

No utility should be needed.
You can hold the Option key down during the boot process to select which drive you wish to use as a boot device.
Also pressing and holding C boots to the optical drive.
There is reportedly a pretty broad number of USB optical drives that people have been able to use as a boot device, as inexpensively as $30. I don't know that there is a specific list though. I would research whichever model you wish to buy with a quick google search or searching that model here in the forum.
Or maybe somebody will have a recommendation which one they have.

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