You should be OK with motorised then, how are you connecting to the net ?
I used a wireless dongle which wasn't great to be honest, 3 network had the best coverage.
It may be best to try one first before shelling out on a motorised set up.
The sites I visited with WiFi where pretty expensive if you use their coverage, again, WiFi connection
so I wouldn't expect fantastic results.
Was told to play a radio station on silent on my phone while running the box to stop the WiFi
dropping out. ;)