Update:
Laptop appeared to be pretty dead. I could have had it sent away for £50 for checks only to risk having confirmation that yes it is indeed dead. The power cable was working fine (registering a current) and my hard drive was saved onto an external drive in PCWorld so no upset there.
I've had the laptop for nearly five years and didn't game on it, only filing work, internet surfing, ITunes etc so no biggie (and it had Vista

).
Ended up buying a new laptop for just over £300 with Windows 8 and i3 processor.
Oh well that's life, I guess