To understand the lack of seeds available, one has to understand the flowering cycle. Bamboo doesn't flower every year like most plants. The range is more like several decades to more than a century, depending on species. The best solution is to get a division of what you want.
Some places such as bamboogarden.com sell F. nitida as seedlings, but not seeds.

I was mainly looking at cold hardy bamboo. I bought some seeds from US sellers. I like the idea of starting stuff from seed, guess I am weird like that. Thanks for the advice.

I have some water boo seeds... anything to trade? :-D seeds? tropicals? I like growing from seed as well.
CJ
send me a note... seeds in subject line or it'll likely be deleted.
clutedad@nc.rr.com

I got some off ebay and will try that, Thanks anyway