I highly recommend Random Person. He has been doing commission work, and deals directly with mesh. He currently has a store called 'Meshers' on SL Marketplace. All his work is extremely clean and high detailed working with all types of 3D animation software (3D Coat, Blender, Zbrush etc.) since 2007 and earlier. Please send him an IM in world.
Regards,
Nemesis Exodus