http://www.modthesims.info/download.php?t=325657
http://modthesims.info/download.php?t=328874
Dress Mesh: http://www.modthesims.info/download.php?t=162216&c=1
Summer's Night Dream Collection: http://www.modthesims.info/download.php?t=99584&c=1 (The Simstones & Medieval Collections are also full of options.)
And OMG! I found a motherlode! Make sure to select Sims 2.http://www.thesimsresource.com/themes/civilizations