Congratz for those who have succesfull in rooting their phone. If you have Superuser app and CWM then its good. Otherwise download that two apps. Use CWM to make full backup of you rom. Incase shit happen, you can flash back your original rom using CWM. No need to use Odin anymore as flashing using Odin increase your binary counter.
Next download Titanium Backup from market. Use it to backup all you apps. Again if shit happen and you have to do hard/factory reset, you'll going to lose all your apps. Just download Titanium Backup again and then use it to restore back all your missing apps. Easy huhh.. :-P
The G version still dont have custom rom at the.moment but it doesn't stop you from customized your phone. You can't unleash you phone full potential yet as you're using stock rom but you still can customized it to suit your personality.
Download launcher from market. There are a few good free launcher such as LauncherPro, ADW Launcher, Go Launcher EX and even ICS Launcher. Use the one that you like most. Then start customized it by downloading Theme. There are dozen of Theme that you can use together with your Launcher. After that download Icon Pack so you can change and make your icons more beautiful. There are also Fonts Pack where you can add more fonts style in your phone. Try mix and match all of this. You'll learn new things on how to customized and beautify your own phone. There are tons of thing that you can do and learn. Before i stop the ceramah, download Android Assistant app to monitor your battery condition and also to monitor any roque apps that may drain your battery. Another good app is BetterBatteryStats app. You can download this paid app from market or download the apk from xda-forum. Use this good app to monitor if your phone got any wakelocks. Meaning monitor apps that keep running even when your screen is off. Try to minimize or eliminate this wakelocks as it keep your phone from deep sleep thus draining your battery. Ok guys and gals.,
Happy Exploring :-)

Each time flash using Odin will increase your binary counter. Buy a usb jig to reset it back to 0 :-)

Yes , it can b use . Just helprd a friend unbricked his unit

I got better things to do than to give a false / fake answer if I have not tried it personally . Besides , my JIGS was purchased from kitkitkatkat , not derek87 . Why dont u check out XDA forum if u have doubt , JIGS is recommended to get it into download mode again by alot of users there . Cheers 

What do you mean stock apps.? The pre-installed apps when you buy the phone.??

You had to have a root first in order to uninstall or freeze such apps. Any other apps that download from market can be uninstall easily without need of rooting.

Use Titanium Backup app to freeze or uninstall any apps from your phone. But make sure you know what you're doing. Uninstall some phone system apps can give more problems to your phone. Try to freeze the app instead of uninstall it. Look at xda-dev for the list of apps that are safe for removal.
http://forum.xda-developers.com/showthread.php?t=1069924