This will make it so you can click a button to open iTerm in any finder folder:
Download *https://raw.github.com/gist/905546/e1a34cf2d217d44858146af71d76546d3289c4b0/finder-open-iterm-here.scpt *You might have to change the extension after saving from .txt to .scpt *Open the script and file->save as application *Put it in your applications folder *Drag the app to the toolbar of a finder window.
Now whenever you have a folder selected (or are in a folder) you can click the icon and it will open iterm at that location.