Here are some options though I am sure I will miss a few (no offense intended to anyone). These LS have been around a while (in one form or another), but check out each site, see what the requirements are and find one that fits your taste. If they have an open Dynamis, you might see if you can go along on a run to get a feel for the group.
DVS3 http://dvsffxi.com/DVSIII/phpBB2/
Soulfire http://soulfire.dnsalias.org/
Yellowcake http://www.yellowcakels.com/
Illuminatis (formerly Wasp) http://www.illuminatusls.com/
Hero Revolution (formerly Heros of Carpe Diem) http://www.herorevolution.com/forum/portal.php
Call of Destiny http://www.turnstylestudios.com/phpBB/
AncientTech http://ancienttechls.proboards92.com/index.cgi
Zenmetsu http://www.zenmetsulinkshell.com/zenmetsu.php?zenmetsu=news
Roses for the Dead (mainly an EU shell) http://s15.invisionfree.com/RosesForTheDead/index.php?s=9cedafd9b694aed24df325f494bcbda0&act=idx
Edited, Aug 13th 2006 at 12:58pm EDT by LacysDad
Edited, Aug 13th 2006 at 12:59pm EDT by LacysDad