You need a PC to properly take care of a black car. This kit has what you need:
http://us.st11.yimg.com/us.st.yimg.c..._1920_32483871
I would adding an extra orange pad
http://autogeek.net/vcpad.html
This comes with a good polisher, if you choose to add one, 2 orange cutting pads, a white light polishing pad, and two grey finishing pads for spreading wax, etc. The compounds that come with it, the XMT series are arguably the best scratch/ swirl removers for the porter cable.
Read about the polisher and process of polishing
http://autogeek.net/dual-action-polisher.html
15% off coupon ending today: SMARTSHOPPER2
About the mirror, your probably going to need some touch up paint. I recommend
http://www.paintscratch.com/ for your needs on that.