I've been wanting to do HIRs in my high beams. Might do it in a couple weeks.
From what I had heard, it was the high beams that were discontinued by Toshiba. I know John Deere (yes, the tractor company) had HIRs low beams for cheap (think they were the Toshiba ones too). They were 12-15 dollars per bulb.
As far as HIDs, I have them in my low beams. They actually have a pretty decent cut off. There is a small bit of stray light, but the black OEM housings would cure that since it's just light reflecting from the chrome housing.
Stock
HID 4300k
My 9005 fogs were on in both pictures.
The problem with a lot of HID retrofits is that they put them in dual filament housings. In other words, there is only one reflector. Any difference in focal point can make the difference between low beams and high beams. Also, when people put them in the older, "frosted" headlights, they put out a lot of glare.
We have a dedicated single beam. Although it doesn't comletely eliminate the glare, it's cut down by a lot. After aiming them, I have yet to be flashed, and it's been more than a year (took those pix in Aug 2008).
As far as cost, I'd get some VVMEs. They are the ballast I have in right now. My friend has been running his VVME fogs in his S4 for long than I have, and they've yet to fail. Even if they do fail, you can just get another kit for cheap
