take a look at www.crownhill.co.uk/tibbo

http://www.crownhill.co.uk/level3.php?cat=24

Very compact and highly integrated, the EM202 Ethernet module features built-in Ethernet magnetics, RJ45 connector, and even four status LEDs! While being a true one-component Ethernet solution, the EM202 has a board footprint just slightly bigger than that of a regular RJ45 connector. Like all the modules in the range its BASIC programmable.