Best roadbike for under £350?

If you've got an Allez it's most likely alu frame and carbon fork (unless it's a 2013) So upgrading the components might be an option - Merlin are doing Tiagra for £300 and 105 for £420

Yeah I was going to sell the allez though and replace it with whatever. It's a bottom-of-the-range triple. Upgrading the groupset just seems an expensive way of doing it. I know that seems a weird way of doing it, it just seems to make most sense financially! Unless someone can show me the error of my ways...