i am a florring installer, and i personally use Lumber Liquidators. prices are good, and their product is top notch.
the Bellawood is an excellent choice for a good price. 50 year finish warranty.
what is your installer charging you per foot to install? (if you dont mind me asking)
wes
here is a tiger stripe bamboo i did for a lady just north of you. she found the material online, i could ask her where if your interested.