Hello,

Welcome. There are heaps of ways to get that scale paint job. There are so many ways to paint these things but the most popular way i seem to find is using latex paint. I guess the main thing about getting a paint job looking good is studying a hell of a lot of photos and taking notice of how the weathering, wear and tear etc takes place.
With my experience with painting smaller a/c drybrushing is a good way to get the acc's looking authentic.

I would do a search on the forums for finshing and things like that and here are a few sites that may help ya.

http://www.rcscalebuilder.com
http://homepages.ihug.co.nz/~atong/ (heaps of sites that have info)

Ace