by ROSEMARIE FRANCISCO and MANNY MOGATO, Reuters | 01/21/2009 7:04 PM A former investment banker-turned-politician and one of Manila's most eligible bachelors has set his eyes on the Philippines' presidency, attempting to follow in the footsteps of his namesake grandfather in the 2010 elections. But Sen. Manuel "Mar" Roxas II says he is aware that political and social pedigree will not be enough to propel him to the country's highest office. Opinion polls show him somewhere in the middle of a pack of about half a dozen potential presidents. "This is not going to be a walk in the park," the 51-year-old, Wharton-educated economist told Reuters in an interview on Wednesday. "Nobody is going to hand it to you. You'll have to go out and communicate with the people our vision and our desire and commitment to be able to make changes happen." Although elections are about 16 months away, many politicians in the Philippines are readying their campaig...