Cheap? Due at time of purchase...
Setup Fee:
£168
Contract:
£623 / year if 3 year contract (paid up front = £1,869) or
£831 / year if 1 year contract
Support:
Depends on choice (Free - £595 / year).
Assuming you choose the free support option, you're looking at £999 for 1 year contract, paid up front, or £2,037 if 3 year contract, paid up front.
Personally, I'd pass on this super deal...