IMO, the default setting for sawfish should be to focus windows when they're uniconified. This way, you can click on an iconified window in the tasklist to uniconify it and click on it again to iconify it. Otherwise you need an extra click to focus the window. The setting is located under the minimizing part of the "Minimizing and Maximizing" capplet.
This is a dup of one of my bugs, I need to look. I didn't realize it was a config option, need to fix the default.
*** Bug 53226 has been marked as a duplicate of this bug. ***
*** Bug 60430 has been marked as a duplicate of this bug. ***
1.0.1-5 should contain a fix.