Sorry to read about your "keying". Some people are just @#$%^&*!:wall

:wall
Most people think that your entire paint job is ruined if your car has been keyed. There are ways to fix them so they are barely noticable.
If the key scratches haven't gone through the clear and they are fairly shallow, you can probably wet-sand them out.
Start with 800, feathering out toward the edges. Then go to 1000, 1500, 2000. After that you will need to use a medium-to-heavy cut polish with your PC and finally a fine polish.
If the scratches are deep, you can "fill" the scratches with body color touchup paint; just go ahead and lay it on pretty thick. Let dry thoroughly, and start the sanding process listed above. The "in-between" step would be to fill the scratches with clear touch-up paint. You'll have to be the judge of the scratch depth.
I've used both of these procedures and they work well. You need to be
PATIENT! Both methods are time-consuming!
Just be careful not to get too aggressive with the sandpaper... you don't want to go through the clear, especially on a leased vehicle!!! The dealer will charge you a GRAND for a "re-paint" and then use the same method I described above!!!
Good luck!
Here are a couple articles:
Car Scratch Repair: Step-by-Step DIY Auto Mechanic Guide - Popular Mechanics
One TUFF MOTHER of a Scratch Repair - Autopia.org