Suggested 1000BASE-LX adapter

[Federico Giannici]

I have to install in an OpenBSD 5.8 amd64 a PCI-E ethernet card 
supporting 1000BASE-LX (i.e. 1Gbps with Single Mode Fiber).

Usually we use Intel cards (em driver) but I found that the only Intel 
LX card has a PCI-X bus!

What reliable LX NIC with PCI-E do you suggest?

Thanks.