I live in an apartment and we all share the same router which sits outside in the hallway. Its a Dlink 802.11g router by the way. Anyways, I want to buy a Time Capsule as a wireless hard drive for my laptop, but worried about a couple things. If I connect it as an extended network to the 802.11g router will that reduce the performance of file transfer. And also is it possible just to use it as a wireless hard drive and have it not be connected to any network? Thanks!