Got so frustrated with Snow Leopard's Finder, almost to boiling point. The Apple Mac is brilliant for video editing with Final Cut Pro, but Finder is not handy at all for building a complicated archive and combining files on several hard drives. I keep getting second windows disappearing.
So I have been playing with Path Finder 5 by Cocoatech. It offers two windows and the ability to drag and drop files and folders in a much more intelligent way. Turns out to cost about 32 Euro, but you can try before you buy to see if its worth it. It took me about 15 minutes to be briefed (video instructions included) and you follow what they do as the video plays. Absolutely no connection with this small company in California, but a lot of respect for what they code. It's going to save me hours.