How to change dock icons (applications, downloads folder, network drive)

I'm new to the world of Mac with a new MacBook Pro with retina. It's running OS X 10.8.2

How can I change the my dock icons. I've seen videos on how to change the basic dock icons like iTunes, Safari, etc..., but can't seem to find a way to change the folder/drive type icons in the dock.

I'd like to change my "Applications" folder icon, my "Downloads" folder icon, and my "Volume 1" (network drive) icon that opens access to my external hard drive.

What is the best way to change these dock icons?


Thanks so much!

Thanks.

Excuse the ignorance, but how do I open CoreTypes.bundles so I can get the options to choose Contents>Resources?

Thanks. I was able to open the contents. Unfortunately, the icons I want to change are not listed in there.

I also tried CandyBar, but same thing. I can't seem to find the ones I want to change.

I'd like to try and change the icons for me external Hard Drive I have listed in my dock. It's listed as Volume 1 and when I click the icon, it opens the contents of my external Hard Drive. I can right click the icon and choose "Show in Finder", the open "get info", but haven't been able to change the icon.

Another one I'm looking to change is a "Windows 7 Applications Folder". This one opens Windows Applications that I can use via Parallels.


Any idea how I can change the icons for these?


Thanks so much for all the help!!!