For you to be happy, someone else will suffer. We've set it up that way. I wasn't going to ring tech support... seemed pointless... but there are a great many people using older computers out there who will be in the same boat - the Superhub 3 doesn't respond to the Core2Quad, ever since their latest fsckup. Even ethernet messages sent by the motherboard refuse to be sent, the moment a cable connects it's ethernet port to the Superhub. Take the cable out, the motherboard is happy testing the port.
SIM router arrived today, will test when I get a bit of time. Is Smarty a workable replacement for Virginmedia? Smarty uses the Three network, which I've used here with no problems in the past. If not, I'll try Giffgaff which uses O2's, which works ok here. EE has better mobile data coverage than O2, mixing many networks, but at their monthly contract prices I may as well get wired broadband, albeit on 18 month contract, which I don't want, because I'm moving.