No cable? If you have Comcast and broadband but aren't home (hello you late workers), you can check out ESPN3.com for free. I'd advise taking a look now so you get familiar with the site.
On the go? Listen to the radio: 1140 AM for Peach-influenced commentary, 1320 AM for the ESPN broadcast, or 680/1050 AM in the Bay Area
No radio, but you've got an iPhone? Get the CBS Radio app and listen to Sports1140 or ESPN 1300