Anyone have any ideas how I can obtain one and from where?

I have a laptop in for repairs - hard drive is shot - there is a valid Vista licence on its base but the owner does not have any disks and the "restore" image was on the hard drive - and of course thats not much help with the drive having packed up!

It doesn't necessarily have to be a Home Premium disc, it can be any Vista disc and it will install the appropriate version of Vista according to the licence key you enter.

Ok - we have some works laptops with Vista Business so I'll borrow one of those discs.