With a bit of offer stacking this looks like a lot of laptop for the money.
Lenovo Z50-70 15.6" i7 laptop
Intel® Core™ i7-4510U Processor (2 GHz, 3.1 GHz with TurboBoost, 4 MB cache)
8 GB DDR3L
NVIDIA GeForce GT840M
1 TB SSHD (8GB SSD), 5400 rpm
1920 x 1080
Pc world have this on offer at the moment at £629.99 down from £749.99.
with O2 priorities you can get £50 off £500, making it £580. then Lenovo are currently offering a VAT back promotion which works out about 16.5% off. this brings it down to £484.