I thought you might be interested in this one - I’ve recently uploaded 10 IES profiles created directly in Cycles using a node setup allowing you to adjust their look without any external applications. There’s also a Chocofur tutorial explaining the entire process and some issues you may come across when working with spot lamps in Blender.
Coming from vray i didn’t even bother to try small mesh lights - never knew they worked so well! (i know they have some russian roulette sampling since a while and a ‘direct light’ option in the materials, but it rarely worked as expected…)