I can find Samsung 16 GB (fully backward compatible with Toshiba HD) for about ~US$70, however the price to ship it here is ~US$30 for one HD as the seller is overseas, so total would be about ~US$100 shipped for one drive. 

Buying a few of those would cut the shipping cost down as I asked about s/h for 2 drives and it costs the same as s/h for 1 drive. I might be able to get a cheaper price per drive if I buy many more.  So with group buy, it can be at least $80 shipped to your door, a save of at least US$20.

I will need to know how many are interested so I can get a number and get an exact quote. Just wondering if any of you is interested.

Thanks.