Last night I finished my Dark Eldar Archon. She's converted from the plastic Dark Elf Sorceress, with the removal of both of her arms and the addition of a Wych Splinter Pistol and a Sybarite Agoniser. From what I hear this is the most economic loadout for her. I originally was going to convert her to be carrying a Huskblade (causes instant death regardless of Toughness), but there just aren't enough multi-wound models out there to warrant the extra points laid out. Plus wounding everything on a 4+ seems to be enough.