Mac Pro and iMac: 750GB HDs as BTO

While looking at the new MacBook Pro, we missed a small update related to BTO. It is now possible via The AppleStore to chose a 750GB HD as a BTO when ordering a Mac Pro or an iMac.
Of course, Apple is not really promoting such HD, this BTO is expensive, replacing the standard 160GB HD by a 750GB HD will cost ... 400€, and buying it independently of a BTO will be even more expensive: 600€!
You will find such HD for around 400€ from online or physical computer shops. If you want to add 4 of them in your Mac Pro, you better but them afterwards and not as a BTO.