8:10pm: The Giants have Scott Podsednik on their radar, Baggarly reports. He's apparently one of the center fielders the club is considering.
7:11pm: The Giants don't have interest in Adrian Beltre, according to John Shea of the San Francisco Chronicle. Giants GM Brian Sabean told Shea that his club isn't interested in the free agent "at this time." In fact, Sabean says the Giants have "no need" to talk to Boras right now, according to Andrew Baggarly of the San Jose Mercury News.
Instead, the Giants are focused on adding a first baseman on a short-term deal. Sabean didn't name names, but acknowledged that his list doesn't include any surprise candidates. That probably means the Giants would consider Nick Johnson, Adam LaRoche and Mark DeRosa, though DeRosa probably wouldn't man first. Baggarly hears that the Giants might consider offering DeRosa a third year; they'd offer Johnson a two-year deal.
On another note, Sabean said it's possible the Giants could sign a center fielder and move Aaron Rowand to one of the corners.