Installing Windows on Bootcamp on new iMacs (late 2012)

I absolutely love the new iMacs. They seem a good bit faster than my current 2009 model and make a nice upgrade for our home 🙂 I am wondering about a few things, and hopefully someone here can help me get some answers on it.

With the old iMacs I have never been able to install Windows on Bootcamp via a USB stick/HD. Since the Superdrive is removed with the new iMacs, I'm hoping that that function is finally activated… currently that function is only activated (in the EFI from what I learned) on the MacBook Pro's and Air's. I have tried to install Windows 7 from various USB sticks and HD's on several different iMacs. Some USB sticks and HD's do properly install Windows when I try the same thing via a MacBook, so the sticks and HD's are not the issue 🙂

Does anyone have some insight in this? I don't really feel like buying the Apple USB Superdrive, which officially is not even supported on iMacs, júst to install Windows for my occassional PC game. So basically, does anyone know wether or not it's possible to install Windows on Bootcamp via a USB stick or HD on the newly released iMacs?