Chiana & I survived our first foray into editing in terminal. :)
If you're a Mac Geek too and want to do this:
1. Fire up the Terminal (/Applications/Utilities)
2. At the prompt, type defaults write -g AppleICUTimeFormatStrings -dict-add 2 "MMMM d, y hh':'mm':'ss' 'a"
3. Press return and then type killall SystemUIServer
4. Press return again. Your menu bar will disappear - click anywhere on your desktop to reload it.
disclaimer: I got this info from MacAddict magazine. It appears to be working fine on Chiana with no problems. I am just posting what I did. I take no responsibility if your computer doesn't like it!