I am gonna repost an earlier post of mine since my old photos were deleted:
My Solara's setup is DDM slim ballast 35w 6000k for the low beams and fog lights, their reliability has been awesome (once I got them all working right as of 12/2012).
I had an issue with the fog light hids a while back (kept blowing fuses), so I connected a relay ($15) that I bought from DDM's website to just one of the fog lights and that fixed the problem (no more blowing fuses).
The 35W 6000K low beams/fogs combo significantly increases night time/poor weather visibility over stock, and they cost very little (I got them at like $45 usd each ($90 total for low beams and fog hids).
Here are some nice photos of my car with the DDM 35W 6000K low beam headlight/ fog light turned on: