How to deactivate Motoblur and undesirable services on Motorola Defy?

Is it possible to deactivate Motoblur sync and undesirable services on Motorola Defy like: - FeedRecieverService - NewsRecieverService - WeatherService (all lanched by app.) Because I really don't care about Weather, news, feed, and must of all, I HATE this Motoblur account who "backup" my personal data without any possibility to limit him : It's just here, in the top of the synced accounts, with a little lock to the left... If it's possible to do that without rooting the device or install a custom rom, it's for the best: I'm looking for the less intrusive method. Thanks by advance for your help.