The book, Too Good to Leave Too Bad to Stay should help you make some decisions about which path to take.
I've been divorced almost a year; he left in May of 2009. If you get involved with any girl right now it will simply be a rebound relationship and few of those ever last. IMO, face this alone, feel all the emotions and let time do its healing. Involving yourself with anyone else is just a "band aid" to not face the pain and reality. Not fair to you or her.
Me 55 H 49 Married 21 years No kids bomb 5/09 filed 7/09 divorced and moving forward 5/10