Need clarification!

I'm the proud owner of a new imac i7, and i have windows 7 that I intend to install on bootcamp. I have a couple questions, which I know have been discussed a thousand times in the forums, but the threads are old and I can't seem to find a sure answer for them.

1. Can I use my apple wireless keyboard and magic mouse during installation of windows 7, or do I have to have a usb mouse?

2. After windows is installed, does the bluetooth keyboard work to hold option at startup and choose which partition to boot from.

3. If the answer to 2 is "no" or "sometimes", how could i go about choosing to boot into os x once im in windows. I know in os x I can go system preferences-startup disk. Is there a similar functionality in windows?

Thanks in advance, and sorry for beating a dead horse, or whatever the hell that saying is

 

Thank you good sir