[Phanx]

For anything that can't use a locale-independent API, just set up localization as usual:

local L = setmetatable({}, { __index = function(t, k)
	local v = tostring(k)
	rawset(t, k, v)
	return v
end })

if GetLocale() == "deDE" then
	L["Battle for Gilneas"] = "German name here"
	-- etc
end

... and then use localized values for your table keys:

local hasGlobalInfo = {
	-- BGs in which the first info line is global (not faction score)
	[L["Eye of the Storm"]] = true,
	[L["Twin Peaks"]]       = true,
	[L["Warsong Gulch"]]    = true,
}

See also:
http://forums.wowace.com/showthread.php?t=19658#10