OK I've found a Firewire DVD/CD drive on Amazon, in stock, £60.

It's a

http://www.amazon.co.uk/DVD-Multiformat-...5870&sr=1-1

Will it work on a Mac?

Box Contents
# DVD Writer
# USB2.0 cable
# 6-6 Pin FireWire cable
# Power Supply
# Burning Software (for PC's). <-------- ???

Sorry to be a nuisance. Thanks again.