which apps shouldn't start up with phone?

[swimon]

What apps shouldn't load when I boot my phone?
And what's a good app to control the startup of different apps?

For example:

I have the following apps that startup with my phone:

- "news & weather" (which I don't even use, ever)
- titanium backup
- google search
- gallery
- market

Why are these apps running even before I need them? Would there be a change in preformance/battery if I stop them from starting up with the system?

Grtz