Just to get you started...
1dslram, I've been researching this some lately for my '96, but I haven't done it yet so this is just to get you started. First: search the forums for 'sport headlight conversion' or something like that. You'll get plenty of info. Okay, for the broad strokes: You'll have to do some minor surgery on the headlight buckets. New wiring, either self made or aftermarket harness. Several have reported the stock wiring and aftermarket harnesses aren't big enough to deliver full voltage and you're better off making your own. Seems believable to me. The sport lights will have two bulbs: a 9004 and a 9007. You only have a 9004 now, so you'll need a pair of 9007s. Of course, you need a pair of the sport assemblies (range in price, do some shopping). Tools: sawzall, electrical hand tools. Someone who has completed this project can get the details better. I'm guessing average price is between $400 and $500. Good luck.