Step1 : Root your phone .

Step1: Root your phone. Use OneClickRoot (google this word+android rooting) on windows to root your phone(I did it on Galaxy S I 9000). Works like a breeze. Be absolutely careful of whatever you do. Make sure your phone model is compatible with the software you want to root with. Try donating to those excellent guys who did this work, although the exploit/vulnerability was discovered by a different person i guess (OPTIONAL STEP ;-)) Step2: Install Titanium backup application. Backup those annoying packages/apps you want to remove first. then uninstall them using this same app. Since u grant root priveleges to this app, this app will show system apps too. Go ahead. enjoy. Also read this nice post before you begin http://www.adilhindistan.com/2011/11/on-rooting-android.html