I agree with Ascinder on the size issue. Take a look at my VX, those lights I have up top are 8" Hella Ralleye 4000s. They are BIG and would look pretty awkward up front. So I would definitely go smaller, and HIDs are a good idea. Someone makes an HID ballast replacement for the Ralleye 4000s which I will eventually buy for mine, so I can turn night into day with ease.
Bart