I hit a deer last year and had to replace. I went with the cheap'o headlights off of ebay. They are around 40 per light and I was skeptical at first but they fit and work great. New clear plastic OEM replacements should give you more than enough light.
If you are looking for more light wire up some cheap LED's or Hella roundies. If you have a deer wacker your options are almost unlimited.
Most people make the mistake of wanting to mount them high, go as low as you can for optimal sub-par weather conditions. Here in Utah we drive allot in the snow and any light above your current headlight will only blind you more.
Last time i researched the HID conversion thing the hi-low options were nihl.