Barely four years after Santa Clara voters voiced their approval of a measure paving the way for bringing the San Francisco 49ers to the South Bay, the welcome mat is almost out for fans itching to get inside Levi's Stadium.NFL Commissioner Roger Goodell joined 49ers brass, as well as representatives from Levi's Strauss and the City of Santa Clara, for Levi's Stadium's formal ribbon-cutting ceremony on Thursday morning. The $1.2 billion successor to Candlestick Park was originally supposed to cost $937 when Measure J passed in 2010, but the Santa Clara Stadium Authority ended up going a few hundred million dollars over budget in order to add a number of Levi's Stadium attractions that would "enhance the fan experience." - Photos: Inside the New Levi's Stadium"I've only been to home games at Candlestick, so it will definitely be a different experience for us," 49ers CEO Jed York said in a Q&A posted on the 49ers website. Santa Clara voters' passage of Measure J was the key moment in making the Levi's Stadium a reality, according to York."Getting the public support and a resounding 60-40 victory, that was really when I felt like, 'OK, this thing has a great chance,"...