Are you going to be riding it year round and regardless of rain etc? Do you need to take "stuff" with you? If so I would look for something with space for mudguards and a rack, disc brakes would be a plus. Maybe even an Alfine hub gear.
How do you feel about drop or flat bars?
You could easily get a Fairdale Weekender for that, or just get frame and fork and build it up how you like, that's a pretty decent budget.
If you didn't want a product I am associated with Genesis do something that might fit the bill I think its the Day One but the disc alfine version would be a little over your budget.
Personally I would probably try to build something up from the Weekender frameset which there are some good deals on floating about, stick flat bars on and Shimano MTB bits to get 1 by 10 and hydraulic discs... Was looking for the frame but actually stumbled on this which is a crazy bargain
http://www.tritoncycles.co.uk/urban-bikes-c4/hybrid-rigid-c30/fairdale-weekender-og-hybrid-bike-2013-p784G.