The Claremont Colleges are Pomona, Claremont, Scripps, Harvey Mudd and Pitzer. The first four are in the top 30 or so of liberal arts and they're all adjacent to each other. The San Bernadino Mountains are up the street and both the beach and skiing are 30 min away. Also, the Mexican food is ridiculous. On Wednesdays Taco Nazo has dollar fish tacos and another place has dollar margaritas. I did my undergrad at Pomona so I'm hugely biased.
Almost all social events are open to everyone (i.e. 5-C). I'm deciding between Scripps for June '08 (I sent my app too late for Fall '09) and Mount Holyoke in the Fall. I'm leaning towards Scripps because I can audit courses at Pomona for free.
In anycase, you'll be living off campus, so the fact that Scripps is a women's school won't really matter unless you're a misogynist. Everyone is pretty laid back and there aren't very many militant feminists at all.