I don't know by experience, but I've always heard that a NIC is faster than USB. I use a NIC and it works well for me.
:tongue: <font color=blue>My job is to polish</font color=blue> <font color=green>turds</font color=green><font color=blue>, I</font color=blue> <font color=red>love</font color=red> <font color=blue>my job.</font color=blue>