Other than completion, this is the best part. This is the ideas stage. Personally, I love to daydream about my dream kitchen.
Try to get a grasp of what you want to do with the space. Also, try to determine whether you're ready to seriously consider a potentially large project. Ask yourself these questions:
Buy "Kitchen and Bath' and 'Interior Design' magazines. Get appliance catalogs and brochures (request them free online from most companies). Cut out pictures or mark pages of things you like. It can be equally helpful to mark things you hate and want to avoid.