I got mine from here:
http://www.roofbox.co.uk/roof-boxes/...FYXLtAodCAMAVg
Great service, everything came next day and they offer an exchange scheme if your not happy with your purchase.
They also supplied free lift straps when i got mine
http://www.roofbox.co.uk/scripts/rbv...7B~cC4ure5JbzB
It means you can store it in the garage roof etc. I cant drive into my garage because of the motorbikes and tools but it means its possible to drive under your roof box and lower it down making fitting easy.