I've been searching but there don't seem to be any available. Lacie have been saying for ages they'd release one this summer but it never materialised.
I don;t suppose there are any but just thought I'd ask to see if anyone has some pointers.
FYI - I bought a MBP wioth 512 SSD and there's no going back. Its jaw-droppingly fast and impressive, hence the desire for thunderboalt SSD to install the rest of my libraries.