I have a '99, so i'd assume the '03's to be as easy to install, but if you get the chrome headlights from AM, they look great, don't cost a ton (cheaper than the halos), and it's a quick 5-10 minute job by pulling out the two brackets per headlight. I'd got the Luminics bulbs with the set of headlights too, and it looks great.
I would have done the polished headlight thing, but mine were getting a bit of fog inside, and there was no real guarantee that the headlight polishing kits would totally do the trick anyways. The chrome headlight replacements are sealed, unlike some other headlight sets out there that you have to silicone, so that was also another reason that i'd got them. Ultimately, the time spent (assuming a nightmare scenario) and the polishing kit expense probably evens itself out for what you'd pay for the chrome headlights, anyways.