Rooting won't change your current gingerbread setup unless you go to the trouble of reflashing the firmware. Otherwise it'll stay exactly the same, you'll just be able to fuck with it.
Rooting your Exhibit Looks pretty damn easy compared to the hoops I had to jump through to root mine. Just download and install the ADB (Android Debug Bridge) drivers and the batch file it has links to on that site, and you can probably do it in ten minutes or less.
Damn,
Removing the provider's apps looks a god damn sight easier that the shit I had to go through to remove my AT&T ones. all you have to do is search for an app on Marketplace. I had to fire up the DOS command-line interface for my copy of the Android Software Development Kit, start PULL-ing files to my HD, backing up the originals in case of nuclear-scale fuck-ups, then editing them with batch command-line commands to reclassify the AT&T apps as deletable before PUSH-ing the files back onto the phone. THEN I got to download an App, jack with its and my phone's settings, and finally delete the goddamn AT&T apps. Pain in the ass. You're lucky.
Then, if you can find a site to download them from and a good tutorial on how to do it, you can sideload custom apps or I think even pirate paid android market apps if you can find them. I've never bothered much with this, though I've been browsing about it with my phone the last couple of weeks.
But yeah, doing this shit technically voids your phone's warranty, though most of the time they won't give a shit unless they're looking for an excuse to get out of honoring the warranty. And if you fuck it up badly enough you can brick your phone, though from what I've read it's nigh impossible to really brick a Galaxy phone, because you can always tell it to return to factory original stock one way or another, but you can and will fuck things up so that your phone's freezing at boot, or bootlooping, or might not even turn on, meaning you have to start scouring xda and androidforums for reset/restore tricks to un-fuck your phone. so far I've only ever done this once with my LG Optimus when I first got it, and it only took me a few hours to figure out how to fix it. Basic rule is: find a good walkthough/tutorial, do EXACTLY what is says and ONLY what it says, and if in the process of doing it your phone does something that it's not supposed to, STOP, go over the tutorial and make sure you did everything you were supposed to in the order you were supposed to. Then panic right the fuck out and start banging it against the table until it turns on. You're pretty safe though, your phone's shit is easy.
Damn that was a lot of text. And it's not even what I came here to say. I was gonna say how I liked Windows 8, then hated it for the three hours it took to get my fucking video driver to load again properly - a feat which I can only attribute to divine mother fucking intervention because I still don't know what the fuck made it finally load - and now I'm starting to like it again since I'm finally *kinda* getting used to the interface, But yeah, it's an early release and lots of stuff, like driver support, is still fucked up.
But at least I finally got Minecraft to fucking run.