Ethernet Card Recommendations?

[KC8LDO]

I'm looking at adding in a PCI Ethernet card to experiment with Ethernet 
bridging using the motherboard gigabit chipset with it. The motherboard 
chipset seems to be working OK and I would like a recommendation for an add 
in card that is known to work fine with Linux. A 10/100 or a 10/100/1000 
card would be fine. I don't need anything fancy but it has to have a low 
profile bracket to fit in a Gateway or HP slimline case.

Regards;

Leland C. Scott
KC8LDO