First off make sure you headlight alignment is correct. This is checked on the MOT, but if you have adjusted the ride height since then get them checked. Most MOT placese will do this for a small charge or free if your lucky !
Decent headlight bulbs, don't get any of those barry ones off ebay or the like. Get yourself some philips vision plus H4's (available from powerbulbs.com) that are standard wattage, so not illegal. They will have a slight improvement over normal ones and give you a good base for the next mod.
Headlight wiring loom, they make a huge improvemennt to lighting due to the voltage drop in the standard wiring. The voltage drop in these are negligible, so you get the full voltage and brighter beam. You can see so much further and the light is a very intense white. These are avilable from pitstop developments, where i got mine from.
The only thing i found is the negative battery lead was a couple of inches shorter than I would of liked, but it still fitted ok.
After these three steps you will be amazed how good the polo headlights can be. Driving at night is a lot more enjoyable.
Money well spent I think.
