How can I deal with unwanted system applications without rooting? There are a lot of system apps in my mobile that I do not use, and have no intention of ever using. I know that is is possible to uninstall system apps and bloatware with root, but is it possible without root?

Are there any non-root options that will help me to deal with unwanted system applications?
No, that is impossible -- as only root can make the system partition writable (which is required to delete a system app, which is stored there). However, using ICS (Android 4.0) or above, you can at least "freeze" them (make it "invisible and unusable") -- and, if you later decide otherwise, also unfreeze them again (see e.g. How to Remove / Disable the Bloatware Apps in the HTC One X or Bye-bye, bloatware: Disable system apps in Android Ice Cream Sandwich).