Okay, this is going to be quite long but I need some help finding the right bike as I don't really know a whole lot about them.
It was around this time last year that I was looking at picking one up but never actually got around to it.
First off, my journey is roughly going to be about 12-13 miles each way traveling between the edge of Greenwich and North London, which I imagine having not rode since I was a kid is going to kill me, considering I am pretty damn unfit!

I'm assuming that a road bike would be the way to go? Some people have suggested a hybrid would be better but I think I kind of have my heart set on a road bike now.
Now last year when I was looking I did a little bit of research and worked out that I would ideally need a bike with carbon forks and at least Shimano Tiagra.
My number one choice when I was looking last year was the Trek 1.5 which I can now pick up for £700, due to the 2013 model being released next month, however I was hoping that people might have suggestions on other bikes I could look out for with the criteria above or if there were other alternatives? or even just confirmation that the Trek is a good choice.
Would the
Trek 1.5 be a good bike to start out commuting on?
Also, is the Cyclescheme worth doing? I've hear mixed reports that it doesn't exactly save a lot of money so 0% finance might be the route to go down.