So I still have two and a half days to go before release and was just wondering how easy it is to make money in the game? In FO3 it took a long time, unless you glitched in which case it was easy. Also how expensive is stuff? I read somewhere that it costs thousands to repair weapons etc.

It's pretty much unchanged from Fallout 3. I didn't think it was hard in that game, either. Everytime you kill a humanoid strip them bare, sell their stuff.