I was in India/Delhi in the summer and was in need of a thumb drive, so brought a '32GB Kingston' with the proper emballage as seen before. These guys made the same trick with the FAT table, just a 64MB flash drive formatted as 32GB. It also just kept working as a /dev/null source whenever you wrote somewith beyond 64MB. I should've known better and it was dirt cheap - but fun experience figuring out the hack they made. :)

Solaris Trusted Extensions is designed to handle users like you :) http://www.sun-rays.org/lib/hardware/sunray/ds/go_DTW_cc.pdf

Windows does in fact support NFSv2 and NFSv3 - but is requires an free installation of SFU (Services for Unix). But as always with Microsoft software, the software is pretty broken - and performance is 1/5 of an SMB/Samba/linux solution.