Hey mate,
I have a VE that had reflector headlights. I purchased the HID upgrade off Ebay, the ones with the ballast built into the screw cap. In the stock reflector lamps they were not very good as there was no direction to the light and it was actually harder to see on dark roads than the original globes.
I have always wanted the projector headlights as I think they look better both during the day and when the lights are on at night. So I installed a set the other night and fitted the HID globes. It is amazing the difference Projector lamps make especially with HID Globes. As the light it directed they are so much more powerful, plus they look awesome from the front compared to the reflectors.
I would recommend to everyone, HID in VE projector lamps are unbelievable. Get them.