Got the Phillips bulbs and set about fitting once the rain abated, despite not being able to see what you are doing I didn't find I needed to slacken the headlamp off and found it fairly easy really, until I dropped one of the bulbs!!! From the sounds it made on the way down I guessed it was on the undertray and then the fun started, I ended up taking the nearside wheel off and putting full left lock on so I could get my arm under the engine, i found it in the end, gave it a damn good clean and popped it in.
Kinda looked like I was doing something major as I had to get the jack from under the boot floor, the wheel brace and locking key from the drivers footwell, the front wheel off and the bonnet on the floor! All that for a headlamp bulb!