<font face="Verdana, Arial, Helvetica, sans-serif" size="2">Originally posted by Dudster:
I seem to recall seeing separate security lines for first/biz pax in some European airports.[/B]</font>
How about something similar to the FastTrack program that is used for immigration control at British airports?
You are given a sticker on your boarding pass that allows you to move through the "fast" line if you have a business or first class ticket. The airlines could also place them on boarding passes of their Elite members at check-in.
It would mean having to check in at the elite line before going to security instead of at a club lounge, but you would be exchanging an extremely long wait in the security line for two relatively short waits.
It could possibly be set up so you could get your boarding pass from an e-ticket check-in machine (where you're still allowed to use them), and just have it verified and a sticker placed at an express ID line.