In reply to Voltemands:
The first bike looks crap - I would never go back to rim brakes for commuting and you are correct to have discs on your list.
If you were shopping at Evans you could look at this - it has hydraulic discs:
http://www.evanscycles.com/products/pinnacle/arkose-two-2015-adventure-road...
I wouldn't buy a cross bike as a commuter if I was buying now (and I've been commuting for years on a Croix de Fer). For a start I wouldn't want to use knobbly tyres if I was mainly committing on roads as they feel sketchy, so you'd have to swap to a heavy duty road tyre.
Eyelets are not essential. I fitted SKS mudguards to my cross bike and it is such a faff, the front one is impossible because it interferes with the disc, and they are ridiculously heavy - I wouldn't do it again. Instead you can get much better mudguards that fit to the seat stay and fork, well out of the way of the discs. Luckily anyway it has been much drier this year and you can get away without guards.
The Specialized looks nice but [broken record time] the groupset is shit. I think it would be daft to economise a bit and get a poor groupset given you can now easily get 105 on sub-grand bikes.
Anyway, for £1000 I would probably get the GT Grade. Looks amazing. In fact I want one.
Canyon Inflite also looks amazing but I think they are web only.
Also the Whyte commuter/urban bikes look nice.
If you wanted more of a road bike the Ribble winter bike might be worth a look - has guards and 105 for about 700quid I think.