It's an old chestnut but it won't make a blind bit of difference if neither of those bikes fit, so you'd be better off with a test ride if possible. I can recommend the Boardman as I have an MTB from their stable and the finishing kit is great value. But, if it were my £1000, I would test ride a Cannondale Synapse 105 (2011) and go from there. I would think (and I bought a 2010 Secteur recently, saving £200) that last year's models may be becoming thin on the ground in as much as many of the sizes of a particular model will have long sold out.
Good luck,
Bill