I am a newbie to wireless routers and I have a few questions... First is the spec for 802.11n finalized yet? If I buy a draft-n or pre-n wireless router now, will it work at optimal performance once the spec is finalized? And second, how much better is 802.11n over 802.11 g? The router will be placed downstairs and my Macbook will be upstairs. The distance is about 100-150 feet. Thanks in advance!