Sorry for bad pictures. but you get the idea. So first up we have a set of 35w 5k HIDs. Visibility has increased and great looking cutoff lines in the projectors. And also some interior lights. Rear wasn't quite as bright as I would have liked it...so here is a ghetto way of increasing light output just by a little bit. Everything was super easy to install, lowbeams took me maybe 8 minutes for both sides and the LED's maybe like 2 minutes... Definitely something that can be done cheaply and very effective.
For my middle dome light, I installed a surface mounted multi led panel. I think It has 24 individual LEDs. Works well, fits fine and is nice and bright. My map lights are just cheapy regular t10 LEDs which are still brighter than stock. All of them fade out nicely.
Where did you get your led headlamps? Just the bulbs or was it more complicated? I'd love to go LED with the headlights but don't want a project that will get complicated. P.s. just re-read and I see you did HID lamps... question answered... thanks!
http://www.superbrightleds.com/cat/daytime-running-lights/filter/Cross_Reference_Number,H11,21,219: Don't think any of these would produce enough light outbut to be used as lowbeams though...