i'm going to try out the attached solution as this way i'd be able to get most of the devices on the scope wireless.
i'll be using a 4 port USB over IP device that you can use to map a USB port wirelessly over IP.
all up, cost should be around $120 but will allow interfacing 4 endpoints including any microcontroller for stepper motors.
still theory, there may be practical issues, but should be fixable.
will post results
some products i found
USB over IP
http://www.i-tech.com.au/products/49...areServer.aspx
http://www.ebay.com.au/itm/Welland-4...3#ht_780wt_905
http://www.jaycar.com.au/productView.asp?ID=YN8406
Serial to USB
http://www.ebay.com.au/itm/RS-232-SE...ht_3794wt_1139
wireless AP
http://www.ebay.com.au/itm/Belkin-N3...#ht_500wt_1156