If you're actually wanting to cycle to work on it, a full on racing bike might not be the best – something with rack / pannier mounts will be a lot more practical, and something that can fit proper full length mudguards will make it a lot more likely that you actually want to ride it to work.
Similarly, road shoes/pedals are okay for pure road riding, but a right old pain at junctions or in heavy traffic.
I've got a trek 1200, which is roughly similar spec to the current Trek 1.5. It is nice enough, and has mudguard mounts, and is not an all out racing bike, although in some ways, with Trek, Specialized etc. you don't get as good value for money as non big name brands (the halfords / planet x ones etc.).
Joe