PCI-e ISDN BRI Card

[Cian Hughes]

Hi All,
I have just realized that my new home VoIP server has only got one  
3.3v PCI slot and no 5v PCI card slot so it will not work with my AVM  
B1 (v4) card which is a 5v PCI card.
So I am in the market for a new ISDN BRI interface.
I am running FreeBSD 7.1-amd64, with asterisk.
What do people suggest? The server also has two free PCIe slots.
Has anyone used a PCIe ISDN BRI card with FreeBSD? I think this would  
be my preferred solution, but the only card I can find is the B200E  
from openvox which is very expensive (http://www.openvox.com.cn/products_detail.php?genre_id=37&id=108 
).

Alternatively has anyone used a 3.3v PCI card with 1 or 2 BRIs?

Finally what are peoples experiences of using an external USB BRI?

Many Thanks,
~Cian Hughes