That's the one I bought... came to £113 IIRC including delivery, and arrived in 4 working days.
I am yet to get extra pads (either 6" or 4") but as I am yet to actually use the thing I will see how I get on with the 6" pads first of all.
I used the guide 182_Blue created and was really usefull. If you get the PC, you will need a 110V transformer, plug and an extension cable. All you will then need to do is cut the original plug from the PC and replace it with the new plug you will have purchased. I got a familyfriend who is a qualified master electrician to do this but only because I am electrically incompetent - you should be able to do this yourself. If not 182_Blue made a guide on this too. If you PM him, he will be able to supply you a discount code to use. The one I used gave me 15% off... nice.
Anyway, as people have said hundreds of guides on here already discussng every aspect so just do a search through and should more than be enough!