I really love Finder's Inspector window, specially on a large screen like an iMac's, but I'd prefer to have it open when my Mac starts. (Yes, it is just three keystrokes, but I prefer to have it already on automatically.) So, as Finder doesn't have this option, I've created an AppleScript to do it:
try
tell application "Finder"
activate
end tell
tell application "System Events"
tell process "Finder"
tell menu bar 1
tell menu bar item "File"
tell menu "File"
click menu item "Show Inspector"
end tell
end tell
end tell
end tell
end tell
end try
Paste the above into Script Editor, save it as an application, and then I add it to your login items. You must have enabled Access for Assistive Devices, which can be found in the Universal Access System Preferences panel.
Mac OS X Hints
http://hints.macworld.com/article.php?story=20081207162534405