635mb! That one definitely has to go. That one will fix your issue, but if it was me, I'd get rid of all of them just because. Don't forget to check back after at least one reboot (maybe tomorrow?) And remove the write permissions from any that have returned.
As far as removing bloatware... There are several ways. I would suggest using Titanium Backup or System Tuner. Both have free versions and both are extremely useful, now that you are rooted.
You can do it manually, using ES File Explorer too, but some apks may have confusing names, compared to the actual app name. Most will be in the system/app/ directory. There may be some in /hidden too... Can't remember off hand.
System Tuner and Titanium Backup will list them by app name and also both will backup the app before uninstall... Just in case you get rid of something important. Be careful.
Edit:
I always leave root access and system writable enabled in ES File Explorer. If no one else is using your phone, I wouldn't worry about it. If you feel better disabling them, go ahead. No big deal either way, really.
Have fun man.
Edit no. 2:
I did see your other posts about your issues with sudo/su/terminal emulator. Don't know what to say about that, but the most important thing is to install CWM recovery so you can back up your stock ROM as a Nandroid backup before you start uninstalling crap. That way you can always restore a working stock ROM. Instructions are on the sticky, but basically it involves booting into "boot loader" mode, backing up/renaming the old recovery and copying the new one using your computer. Don't touch anything else in that directory and all will be fine. That's where people screw up... Messing up (or deleting) the directory.