hi thanks for your replys
my garage is pretty big so the fans in my case will be usefull because it had to be really big big industrial fans.
So at the moment i'm interested in that after paiting tips like FMXhellraiser said.
So after paint the car i should wet sanding all the paint? and it will give me scratches that i'll fix with the buff and the wax? is that? it should be done with hands or theres any kind of machines to help with that job? can you give me brand names and kinds of wet sands, buff and wax? I'll do some searchs about this subject anyway if anyone has pictures to post to show the diferences before wet sanding, after wet sanding and then after buff the car and wax it, would be awsome.

Thanks once again for your tips