The Trek 8.6 DS ia an interesting blend of ideals both on the road and off - It's competent and comfortable in most scenarios but with some compromises.
Carrera's Gryphon is the kind of bike that sells in big numbers in the UK, and for good reason. It's a well-balanced urban machine that's sensibly built and very well specced for the price. £370 isn't pocket money but it's very affordable. This bike would cost you around £20 a month on a Cycle to Work scheme and it's built to last, so if you're looking for an urban workhorse it's definitely one to consider.