I've just renewed mine today. I did not think this was a price you could haggle on as it all looks standardised. Anyway prices:
without Emergency cover:
?0 excess , ?393.79 pa or ?36.82 pm
?50 excess, ?362.08 pa or ?33.76 pm
?100 excess, ?335.48 pa or ?30.08 pm
with Emergency cover:
?0 excess...