According to USA Today, Marg has renewed her contract with CSI for 2 more years:Marg Helgenberger, co-star of CBS’ top-rated drama CSI, renewed her contract with the show in a two-year deal. Helgenberger, who plays Catherine Willows, was the last of the major cast members to re-sign except for Gary Dourdan, whose Warrick Brown exits with tonight’s season finale (9 ET/PT).For more details, check out USA Today and TV Squad.