I have bean having trouble with my wireless G router connections going in and out, mostly with 2 Macbooks , my Win XP desktop which is wired directly with router not as often or as many problems. I was thinking of just replacing my router with a new N wireless router. Are N routers worth the extra $? Will I also need to get N cards for my 2 Makbooks or are N routers backward compatible with the G built in to the Macbooks? Or should I save a few $ and just upgrade my antenna's and or move my router to another location ( currently close to my TV and other A/V equipment ) ?