http://www.amazon.co.uk/dp/1118206673/ref=pd_lpo_sbs_dp_ss_1?pf_rd_p=569136327&pf_rd_s=lpo-top-stripe&pf_rd_t=201&pf_rd_i=0471327336&pf_rd_m=A3P5ROKL5A1OLE&pf_rd_r=11QTZHXXNRAAC7K7KJXC
Some great advice on writing value propositions along with proposal and getting them to the right people!