If anybody is interested, I have a brand new slimline USB DVD-RW drive for sale for £10. It will attach to any PC or laptop. Particularly useful if you have a netbook or laptop that doesn't have it's own DVD drive.
I also have a couple of slimline portable USB disk drives for sale for backing up your documents, photos, etc. I have an 80Gb drive for £10 and a 160Gb drive for £15.