Samsung Vibrant :: Which Apps - Bloatware - To Remove

I rooted my phone, installed lagfix, and removed some bloatware from the phone via Titanium. The phone was stupid fast after doing this, almost everything loaded up instantly. However I started to notice some things weren't functioning properly. Apps on the marketplace would not download, I would try to download Launcher Pro and nothing would happen, nothing downloaded. Tried this with other apps, same thing. I rebooted the phone and noticed upon reboot that a force close/app error happened, not sure which app it was but it had google in it. I have no idea what app it could have been since I only removed apps if I knew what they were like Slacker, Kindle, Sims etc. Maybe removing the Sims caused the error?

I also noticed that emails wouldn't send (or would take a long time) even when I was on wifi. And the XDA app wouldn't work. I would go to make a post, click the text input box, but it wouldn't let me move the text cursor. I would press the keyboard and nothing happened.

I removed a crap ton of apps but they weren't anything major. I also removed the samsung widgets since I would never use those. Guess I should have asked on the forums before removing so much stuff.

Which apps are okay to remove? Any ideas on which app could have caused the market to mess up?