Tcl's nice for this kind of thing too, as it's really easy to make your own "DSL"'s (or is that passe`?)

    directory "/usr/local/foo/bar" {
        options bee bop doo wah
        if { $someotheroption } {
            order allow deny
        }
    }

Lua might or might not be better for processing requests: it's sure fast. Config files don't really need to be fast though.