My game is tomb raiderish. Its set in today, with the PCs living in and around Seattle, WA. I describe the game setting as 90% Indiana Jones/Tomb Raider and 10% Buffy/Resident Evil.
As far as conversion goes, I know almost nothing about buffy, having seen only 2-3 episodes and the original movie so we haven't tried to "convert" anything. You could call the genre something of a shadowchasers or mild UA. Basically, PC use of magic will be extremely limited, it's mainly reserved for very bad NPCs and as plot devices. That's not to say that PCs cannot possess or use arcane items, it just means that you won't find a PC spellcaster.
