Change date in menu bar from "DAY MONTH" to "MONTH DAY"? The date in my menu bar is in "DAY MONTH" format (e.g. 23 Oct) but I want it in "MONTH DAY" format (e.g. Oct 23). How can I do this? Also, it shows "Tue" as the week day when I'd prefer seeing it in full (e.g. "Tuesday").

In System Preferences -> Language &amp; Text, "Region" is set to "Custom" because I changed a few things on the page. Under "Dates", I see: "Thursday, January 5, 2012", "January 5, 2012", "2012-01-05", and "2012/01/05".

Is this date format based on my location and is therefore fixed? (I'm not in the US at the moment.)

I'm using Mountain Lion now, but I recall a few versions ago that it was much easier to modify the date/time appearance in the menu bar by copying and pasting a few elements in the Date/Time preference pane.
Have a look at this page on macyourself.com - it does exactly what you're looking for, it seems.