The models and prices that include the 1.5TB drives are as follows:
* NewerTech miniStack v2.5 FireWire 400/USB 2.0 Storage & Powered Hub $269.99
* NewerTech miniStack v3 FireWire 800/400/USB 2.0/eSATA Storage & Powered Hub $299.99
* OWC Mercury Elite-AL Pro FireWire 800/400/USB 2.0/eSATA $279.99
* OWC Mercury Elite-AL Pro FireWire 400/USB 2.0 $249.99
You can find more information at the above links.