I am not a fan of eclipse but lets try to get over this nightmare. (fan of lightweight editors: nano and editra)

Installing Eclipse on Mac

First download Eclipse Classic from http://www.eclipse.org/downloads/
Unzip the file and drop the folder into your applications folder.
Launch “eclipse.app” from the app folder.

Setting up Eclipse on Mac

Go to Help > Install New Software > Add
Type in Android ADT and paste in this url:

https://dl-ssl.google.com/android/eclipse/

Now to add Android SDK.
Goto and download the Mac SDK from: http://developer.android.com/sdk
Unzip the file and place the folder in your user directory. (if you click your mac hdd, in places, you should see your login. There should be a android-sdks. Open it and place it there.)

Running HTML5 cordova on Android

http://docs.phonegap.com/en/2.0.0/guide_getting-started_android_index.md.html#Getting%20Started%20with%20Android

DBAccess using SQLite on Android

http://docs.phonegap.com/en/2.0.0/cordova_storage_storage.md.html#Storage