There was no such thing as a iPod Touch 30GB, second generation. See here for reference:
You really should first learn how to use/set up/troubleshoot your device before complaining. It's common knowledge that iTunes is the biggest piece of bloatware known to mankind, so that's the first thing you need to deal with. If your music library is properly backed up somewhere as it should be, you can start from scratch and eliminate the issues you face currently with the corrupt iTunes install/library/data. On Windows it can truly be a pain, but starting from scratch works nearly 99% of the time to get up and running again. Again, learn about your options on the table before complaining.
Steps you should take:
-Back up your music library (& other unique data not on the cloud) to an external drive if you haven't already
-Use third party software to backup what you need currently on your iPod which is having issues. There's a nice one called iTools for Windows that you might want to check out for starters.
-Uninstall iTunes on your PC
-Run a registry cleaner which will assist in removing rogue references to iTunes & associated files/folders
-Nuke your iPod Touch (e.g. do a complete device reset)
-Re-install iTunes on your PC (make sure you have the latest version)
-Import music library into iTunes
-Activate your iPod Touch as a new device using iTunes
-Sync with newly created music library on PC
-Logging in w/ current AppleID will allow you over wifi (& perhaps also when connected to iTunes via USB) to re-download your old apps. This nay take some time if you had a lot of programs on your device, btw.
Let us know how it goes and perhaps we can troubleshoot further. It's definitely not the hardware, but corrupt software/install that's causing your issues. Also, turn off as many unnecessary things running in the background on your iPod Touch over wifi to speed up performance.
Nearly two years ago, my previous iPod Touch 30GB Second Generation, literally went kaput on me, (battery and internal space) so I decided with the extra money to purchase a 64GB iPod Touch 4 Generation. Prior to updating the iPod touch to the iOS 5, that iPod touch was one of the best purchase I ever made with Apple.
Then came the iOS 5 update. The update was so heavy that my iPod touch hasn't been the same since. It seems to lag behind on everything, I removed any apps that I have on my iPhone so that there would be some semblance of normalcy, yet it still is very slow. I have a Windows based laptop and the update to iTunes has caused the file to become corrupted. Upon downloading and correcting the iTunes error, the songs I have on my computer have been doubled and in some cases tripled! I wrote Apple a email about this problem and I can't synch my iPod or else it would run out of room.
Apple has truly lost me as a customer, the $400+ I spent on a soon to be paperweight is disgusting. Apple seemed to have realized their error by making the current versions of the iPod touch 4 Gen with a faster processor hence comes the MC. The current versions are MD and the new iPod touchs are a totally different breed, yet lagging in the storage needed for people like me that have well over 9000+ songs that DO NOT want to cloud their music.
Apple truly screwed me with the iPod touch 4 Gen.