[Halfdeck]

Ideally, you want backlinks to multiple index pages, and then push that juice into a single main.html, which links into gallery 1 and gallery 2. Goal there is to keep your gallery pages in the main index insteaed of the supplemental index. If you manage that and optimize your images, you'll pull Google images traffic. One minor problem is you can't use a framebreaker javascript on those gallery pages. To push more juice into your main page, you need to nofollow your aff links. You can also link to main/gall/gall2 from index.html (stuvel does that with her free sites). More internal links = less PageRank bleed back to the LLs. Another tactic is to not have 200 recips on the index page.