£82.50 delivery (not including the 5% quidco) or £79.00 in store. I think it'd be marginally cheaper to have it delivered.
Also if you wait a little bit for the in store pick up you can get £5 off from an instore voucher.http://www.hotukdeals.com/deal/568248/marks-spencer-in-store-save-5-off-a
I had a quick look around and couldn't spot it cheaper.
DIRECT LINKS DONT WORK. Just goto the site and enter the name and model.