You may have a problem with your eclipse setup and perhaps being more specific on the error would help. For instance, there is a known bug with Eclipse Helios autocomplete being very slow with the Android SDK. Do you have the latest dev tools and eclipse plugin?
To answer the question, Netbrains' IntelliJ IDEA has android support and there is a plugin for NetBeans that allows android development also. For C++ code this can even be done in Visual Studio (see most upvoted answer here) as well as C# in Visual Studio with MonoDroid.
I will choose to ignore your comment on notepad and the command prompt and for the sake of completeness list some other tools:
You do not need to use a graphical tool at all in order to develop an Android project. Google provides help for Managing Projects from the Command Line which requires use of adb and Apache Ant. Software can be developed using any IDE or text editor. Personally I use Vim, but Emacs has an Android development minor mode that provides nice key bindings for working with the Android SDK.
For additional information see the StackOverflow questions here and here.