If you are still looking at a road bike you could get a hell of a lot for even £400 on ebay at the moment. Road bikes depreciate a lot as they are not so fashionable these days.
You will love fixed wheel bikes though and they do work you harder for a given distance than their multi geared counterparts, at least I find this to be the case. Try a few but don't drive yourself nuts trying to choose, get on a bike and get pedalling, this is the best way to really learn what you want when, in the future, you are looking to upgrade.
If you are still looking at a road bike you could get a hell of a lot for even £400 on ebay at the moment. Road bikes depreciate a lot as they are not so fashionable these days.
You will love fixed wheel bikes though and they do work you harder for a given distance than their multi geared counterparts, at least I find this to be the case. Try a few but don't drive yourself nuts trying to choose, get on a bike and get pedalling, this is the best way to really learn what you want when, in the future, you are looking to upgrade.