Hi All,
Thought i would share my Ethernet Gateway in a custom case.
The board is a itead iboard http://imall.iteadstudio.com/im120410001.html since i mounted this one in a case no modifications were needed to the board to connect the radio module.
The case is actually a modified HP MSM320 wireless access point http://www.zdtronic.com/images/MSM325.jpg which i cut down and sprayed black. As luck would have it the Ethernet + Power line up perfectly with the existing holes. There were even 3 existing holes which i simply had to drill out to for the larger LEDs.
So far i have tried the serial gateway based on a Nano & a Ethernet Gateway with a ENC28J60 and this is by far the most reliable solution.