Thomas:
Thanks very much for your help. When I thought about it logically I realised I was never going to need more than 4 gigs anyway. I would struggle to fill 4 gigs with games. After being on the PC for so long you tend to forget that games were usually on one 3.5 inch floppy
.
I have therefore bought a 4 gig CF card and an CF->IDE adaptor and will go that route.
Luckily the card I bought happened to be on the list of working cards, I didn't think to check that until after I had bought it
.