[D20 Modern] Animal Campaign, assist needed

[Magius del Cotto]

Inspired by this thread, I have decided to try running a D20M animal based campaign (you know, where all the chars are animals...). Besides the obvious issues of no opposable thumbs (handled by SSB:M inspired feats...), and animals (usually) being unable to handle human currency, as well as the low statting of animal inteligence (gonna HR that...), what problems should I be ready to face? What mods am I going to need? What should I do to keep the novelty alive?
What I have thus far is this:
A set of feats that let characters without opposable thumbs use normal weapons (need prereqing though...)
thinking about adding +8 to the animal's int scores (off what's in the MM) to bring them to an intellectual level equal to human
Maybe adding +2-+3 to charisma, though may not (debatable)
Automatic languages: Common and species (IE hedgehog), plus a Human language appropriate to where they're from if they have the right background (IE, raised on a farm).
Anything else that I'm going to need to worry about?

 

[dkilgo]

Me personally... I think that the novelty of it is great, but the aspects of the campaign are too limiting. I like a campaign world to have a limit of the sky. Anything goes, and very few limits.

 

[Anime Kidd]

When you start this, think you could tell me how well it goes? I would like to try it myself, but sadly, no game group.