I installed the platinum sheep skin seat covers from SCA on the weekend. They seem to fit OK (after the obligatory cut on the hand from the sharp metal!), but I don't really like the feel of them. They make me feel like the seat is tilted forward a little. I'd probably get used to it, but I'm tempted to remove them.
I've found some leather seats that I assume came out of an SR or something at a wreckers that look OK, but they're more grey than the existing black upholstery. They're also not much more expensive than the seat covers, and naturally have the airbags! They also have ISU embroidered in them - not sure what that means?