I wouldn't vote. Even as a politics student. Labour and Conservative are as bad as one another, Lib Dem is the dithering party that doesn't have a clue what it wants, the rest are a waste of time even as a symbolic vote, BNP I'll be damned if I vote for scum. So, I wouldn't bother. It's as symbolic as the protest vote. And either way, my own belief is which ever wins, the Red team or the Blue team, they'll largely act in the same way.
Horrifying number of votes for the BNP. Seriously, I worry that they will gain in stature. A wolf in very tatty unconvincing sheeps clothing.