The community edition of IntelliJ makes a great Android development environment and is free. I can't imagine doing Android dev in a straight text editor.
I love IntelliJ, but I keep coming back to Eclipse because of all the plugins available for it. I would love to see IntelliJ somehow build the 3rd-party community of plugin developers.
What plugins do you use? Is this for Android?
I thought there already is android-sdk integration in IntelliJ
There is. It doesn't have all the features of Eclipse for Android but it's everything you need. I haven't touched Eclipse so far.