By default, your iPhoto Library lives in the Pictures folder in your home directory, and is called iPhoto Library. Copying this 'file' will bring the full iPhoto Library over to the new machine. The iPhoto Library is just a wrapper for the more complex file structure that iPhoto uses. If you right click it and choose show package contents, you can get some insight as to how iPhoto manages your photos
Note: If you press and hold the option key immediately after launching iPhoto, you will get a pop up that allows you to point to the iPhoto Library you want to use. You may also create new iPhoto Libraries that will allow you to split your iPhoto Library, if desired.
Note: If you press and hold the option key immediately after launching iPhoto, you will get a pop up that allows you to point to the iPhoto Library you want to use. You may also create new iPhoto Libraries that will allow you to split your iPhoto Library, if desired.