Just to make sure were on the same page. You wet sand (do a search on youtube) and then High speed buff which is not the same as waxing. I wouldn't put wax on the car for several months to give the new paint time to fully harden.
You will need a buffer with a couple pads a cutting compound and a polishing cream. Get yourself some 1200 or 1500 grit wet/dry sand paper and foam block, a hose or a sponge to keep it wet and sand in one direction back and forth avoiding any creases so that you don't sand through the new paint. Try and avoid the edges. After that you use a wool bonnet with some cutting compound and go over the whole car at about 1200 to 1400 rpm on a 12 inch buffer pad. Again avoid any corners or edges. After that switch to a foam pad and slow to 1000rpm or so because the foam can't disapate the heat as well. In my kit I have 2 different foam pads One is medium and one is fine. I usually go straight to fine after the wool. Fine using a polish and it turns out great. You have to make sure you never stop in one spot for too long or it will burn the paint and if your lucky you can wet sand it away. After a while you will get a feel for what to do and how much pressure it wants, buffer speed etc. Its extra work over what most people out there care to deal with but in the end its well worth it.
In case your interested, Here is a video of my mustang that I did the body work on. It didnt need much but I did shave the antenna off the right front fender for a cleaner look. I wet sanded and high speed buffed it and waited to wax it for a couple months. It is very dirty in this video but you can tell its shiny under all that dirt. I need to give her a little TLC but its a solid car.
Just so you know my first love was the 79 corvette and then came my camaro which I have had since 85. The camaro is in the garage with the doors off of it getting ready for paint as of this date. I can't wait to get her back on the road.
http://www.youtube.com/watch?v=t1Fxs1yUN5I