My old 802.11b router has poor range (I think, nothing to compare it with). We need to run a 50' ethernet cable to one computer that's out of range and just a few rooms away our macbook pros and PS3 won't receive a signal. We have thick walls, though. Are there any newer routers with much better range? I don't care about speed at all--my internet is not that fast. But I'd really like to improve range. Or should I daisy chain routers across the building? Thanks.