Two people that I greatly respect and follow are pastors James MacDonald and Mark Driscoll. Both have recently returned from Haiti after seeing on the ground and up-close and personal what’s going on. They are working on a new project called http://churcheshelpingchurches.com/ and are helping to rebuild the Church in Haiti.
I encourage you to follow them on Twitter (see their names above) and check out THIS website and see how you and your church can get involved. Be sure to watch the videos on their website. You can only see them there.