Overclockers have got some mad prices on all their Vista pre-orders.
Vista Ultimate - £135 (retails at £364.99)
Vista Home Premium - £66.99 (retails at £217)
Most users will need to get the 32bit version.
This is OEM only (without box and manual)
Forgot to add vat to the home version. It is £78.71 - plus you can expect to pay atleast £2.50 for delivery