I changed the bulbs from the standard ones to halfords xenon type, same wattage but the light was far crisper and brighter and improved the headlight beam impressively. Aronud 14 quid a bulb, although you can find them cheaper certainly on ebay.
Ive got a 300 tdi now and im about to do the same with them, even though the lights are better than 200 series the crispness of the bulbs spread of light was excellent.