Without trying to tell you what to do, there really isn't much point in the V5. The only real benefit you find in the V5, as Billy stated, is that most of them have a slightly higher spec.
They only have 170bhp (be careful, some earlier models came in 150bhp form) and the fuel consumption is pretty poor. Your much better off getting a 1.8T as its by far the superior engine. A 1.8T with a remap (which in my opinion is ESSENTIAL if you buy a 1.8T as, lets be honest, its very underpowered in standard form) will see you leaving V5s for dust as well as leaving them at the petrol station.
Just out of interest what attracted you towards the V5?