My xc's radiator needs replacing and I have been reading many different stories on these two types and now I'm unsure on what to get. The copper ones are a lot more expensive it seems and the aluminium ones look a lot better, but I have heard stories of rust and cracking in them. Either way I want a heavy duty/3 core radiator. Any ideas?

Aussie Desert coolers can do either a brass/copper one or an alloy one. Alloy is way better for heat disipation, especially if the donk is a hot one.
Falcon's have had alloy radiators since the AU in Sept '98.

Aussie Desert Coolers would be good but a bit out of my pricing at the moment. Think I might have to see what my local radiator place can do for me. I'm thinking alloy 3 core just to be safe as it runs a little hot. Thanks mate.