As can be seen on this all-time list of hitting streaks of 30 games and longer, some leading streaks of recent vintage include Jimmy Rollins, 38 (2005-2006); Luis Castillo, 35 (2002); and Chase Utley, 35 (2006). Four players in the 2000s reached 30 straight games (Albert Pujols, 2003; Willy Taveras, 2006; Moises Alou, 2007; Ryan Zimmerman, 2009).
[UPDATE, May 5: Today's Los Angeles Times features a retrospective on Willie Davis's streak and his career more generally. Meanwhile, Ethier is sitting on a 29-game hitting streak, having sat out yesterday's game due to an elbow injury. The Dodgers have a travel day today, which gives Ethier a two-day break.]