I happened upon this insanely great "true" LCARS system that runs on top of Windows and works (so far) in CrossOver: http://www.lcarsdeveloper.com/downloads.php.  Download the "LOSS 8" demo.  It would be even more insanely great if there were an OS X version.  If you want to see LCARS in OS X as badly as I do, send them an email asking about development and encouraging it.
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Cheers! :-)
- JediJoker

Current:
- "ProBook:" 15.4" MacBook Pro Core 2 Duo 2.33 GHz
- Mac Classic II
- Old PowerBook

Moved On:
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- Purple iMac