This one seems reasonable so I will get one in to try out. http://www.newegg.ca/Product/Product.aspx?Item=9SIA5SC1VA2702&cm_re=lantronix_spider-_-9SIA5SC1VA2702-_-Product
The only downside I see is that a laptop will have only 1 NIC and so I won't have both a console and network connection at the same time. I guess I could also get a USB NIC adapter for a 2nd NIC.