There are plenty of free decent applications out there that can help you...
Not to be too spammy, but if you download m:IQ it will backup your contacts (and other data if you want) to a private account. Then when you get your new phone you just download the app again and sign in to get your contacts ect. onto new phone.
Hope that helps! Good luck!
: Free Mobile Phone Backup, Contact and Calendar Sync, Web Text Messaging, Photo & Video Uploads, and Connection to your Social Networks