This mini-HOWTO will guide you though the integration procedure for both Drupal and Gallery2, with assistance of FCKeditor and G2Image. If you hope to insert your photo album images into Drupal without a heavily embed style, this should be your cup of tea.
Why not integrate with Drupal's gallery.module?
The most simple answer should be: keep everything simple. I hope to keep my Drupal and Gallery2 installation isolated for a simpler management, as different system coming with different specific requirement. What I only hope to do is to reuse the existing resource coming from Gallery2, so user don't need to upload a single image twice.
Why not use Drupal's image.module + img_assist.module?
They are in different design so I use both solution. I use image.module + img_assist.module for tiny amount Drupal-only images, for fast layout design and so on, e.g. insert some image when writing a blog post as like as this mini-HOWTO. You won't hope to: 1. create a new album in Gallery2, 2. upload images and manage their title, 3. go back to Drupal and choice your image thoug