Fog Lights vs HID Headlights

Right now I'm looking to get better lighting for my Mustang and I'm going back and forth between getting 35watt clear lens foglights for my V6 which currently does not have any foglights, or getting a 55watt HID kit to replace my current headlights.

I'm not looking for anything flashy I just want to have good lighting that projects out far infront of the vehicle and still lights up the road to the side of my car very well. I feel that with the stock style setup I have to chose between good lighting close up and good lighting far out when I'd like to have both.

So what do you guys think, 35watt Fogs or 55watt HID's?

Cost isn't a big issue but the less I spend on lighting the more I'll have left over to spend on suspension, tires, and go-fast parts; so I'd like to just get one of the two right now and if I want more lighting later on I'll pay for it when the time comes.

I'm just trying to figure out which option will have the biggest impact on lighting output, since oddly enough the costs of the two options are roughly the same, with fog lights being slightly more expensive.