If you're after remoulds, I've gone for the Marix ones on mine after my Colway/Greenway Machos finally bit the dust.
The two mud patterns are the Puma and the Lion. Lion is a Simex copy, Puma are the ones I have which are the directional diamond type pattern.
http://www.newlifetyresonline.com/
Delivery is £5 per tyre, I might be able to get a club discount if it would be of interest. Online ordering is due to be completed any day now (when I find the problem with the payment gateway that is currently stopping it working !)
Remoulds are, fortunately, exempt from the new s-mark law, not sure which "new" tyres are still available to buy.