Ok, roughly a week ago I was preparing for a 1000pts semi-competitive tournament with some friends. I posted the list I was planning on using in the Army Lists section for some c&c and included many batreps in the thread, both of my playtesting of the list up to the tourney and then the tourney itself. I apologise in that they are not very detailed and lack images but I'll include the link to that thread here if anyone is interested in how a fairly typical 1000pts Dark Eldar list does against a variety of opponents across many games.
http://www.thedarkcity.net/t3601-1000pts-dark-eldar-list#41402
Since that thread is getting to the end of its lifespan now, I would appreciate it if comments on the list and the games were posted here.
Subject: Multiple 1000pts Battle Reports 
Tue Jul 31 2012, 18:18
