Brendan...
Get a Serial extension cable, a USB to serial adapter, and a EQDIR plug from Shoestring astronomy.
Plug line should look like this.
Laptop - USB->Serial - EQDIR plug - Serial Cable - Mount.
Download EQMOD software and a compatible planetarium program and you're up and running...
You'll then have no need for separate guide cables, as pulse guiding runs through the serial cable.. You'll have full control of the scope via the PC.. its very nice and works great...
Otherwise, your EQ6Pro should have come with a pale grey cable, serial at one end, RJ12 at the other. get a USB to serial adapter,
Laptop, USB-Serial, Pale grey lead - hand controller - mount.
This second option is good also, you can control the mount using either the Celestron Nexstar 5i/8i drivers, or, you can run EQMOD through this kind of connection, however EQMOD is known to have compatibility issues in this configuration....
I run the EQDIR plug from shoestring, Have not used the hand controller since getting it...
As for Mikes Wireless option... hehe... Wait till your mount looks like mine, then tell me you dont want to remove some of the cables for ONLY $200