Hey guys,
With a laptop with built in bluetooth, you could try one of these from Iogear
http://www.iogear.com/product/GBS301/
Connects to the RS232 Serial port of the mount (is that right? not sure if you still need the EQMOD thingy?) and then Bluetooth's back to the PC.
Listed at $99.95 USD on the website, but global direct shop is listing it at $79.
If you dont have bluetooth built into the laptop, you can get a bluetooth "dongle" which connects to USB and enables your PC to see, pair and communicate with Bluetooth devices such as mobiles, printers and this serial to bluetooth adaptor.
Cheers
Chris