Lopos2000: Thanks for the link to the Blizzard IV for sale.
However, I said I was looking for one and what should appear on amigakit.com but a Blizzard IV '030 so I'd ordered that one.
Spooky really, I've bought quite a bit from there over the last few weeks, I'm sure they're watching me now to see what hardware I'm after. Then they put it up for sale on their site so they can reel me in and empty my wallet. :-)