BiggusGeekus
That's Latin for "cool"
Henry said:Seriously, Either GT or d20M would do the trick. Depending on if you wanted true to the TV Show, I'd say put Massive Damage at 10, ignore the advanced and prestige stuff, and just make 'em all strong/smart/tough/ etc. heroes, under 10th level, allowing a limited pool of Action points to stabilize and stave off death. Using some of the cooler talents added to GT would allow the psychic and super-ninja types like River.
This looks good.
The way I'd handle River is to have some kind of talent or feat that mandated INT 18+, CHA 10-, but you had a floating pool of +5 insight bonuses that you could add to any attack, save, or skill roll. Stipulate that it takes you two rounds to "refocus" your attention on any given probelm when you reallocate your bonuses.
I'd handle Reavers the same way, increased STR and CON, with the downside that you're loopy. And if you aren't willing to spend the feat, you get turned into Reaver chow.