Alex,
Here is a link to some photos of my U-Boat build here on the forum. It is on page 20.
http://cs.finescale.com/fsm/modeling_subjects/f/7/t/150218.aspx
I was under a deadline so it didn't come out the way I hoped for, but all in all it is not bad. I used Tamiya spray can colors and decanted them so that I could airbrush them. After the paint, I gloss coated and let that dry a few days before weathering it with Model Masters enamel Burnt Umber mixed in varying degrees with Burnt Sienna. I usually keep a list of the colors I use but at the moment I cannot find them. You might also try www.uboat.net for ideas.
I'll keep looking for the colors list.
Steve