ThurstonX
Headphoneus Supremus
I just received a pair of Brainwavz HM5 leather pads I bought from Mp4nation. They are really good! They go for something like 20 shipped IIRC.
Quoting again... after googlin', I found the reviews on mp4nation. HE-6 and HE-500 owners proclaim the pads greatness. All hail the new age of Millinery!!!
For others interested:
http://www.mp4nation.net/brainwavz-earphones/brainwavz-hm5-spare-earpad-1pc#product-tabs