Networking Question

Okay. To clarify, you'd like to share between locations? or just pc's?
If its in house, share a drive/folder on the pc you consider the best able to cope, then make that the default folder for music, movies and whatnot. I use an external HDD for the same, shared to all pc's on the LAN.
If its both in house and distance, try a simple webserver (http://www.devside.net) and use a program like Jinzora (http://www.jinzora.org). The setup for both is relatively painless and importing your files is handled by the program itself.
I use both of these solutions, for in our office and abroad.

first of all I (want) to assume this is legit content we are talking about.

then the sharing scenario

if this is like "hey I got the pictures, movie... of your last family reunion, you'll want to get them on your computer"
share them with p2p type of solutions
-pando (sends an email with an attached piece and both clients handle the transfer)
- grouper

if this is for more collaborative work requiring something like a shared drive.
- if you are in the same house just enable sharing on the concerned folders and map network drives
if not:
- use a free file hosting solution like AOL's Xdrive along with the xdrive deskop. each of you will create a 5GB account and share his docs with the other account.
- for direct access to each other's hard drives use barracudadrive and webfolders. then you'll probably have to deal with firewalling (opening ports on the internet connection defaults of barracuda are 8080 and 8443) and change of ISP provided IP address, hence use a dynamic dns client (dyndns.org noip ...)

HTH
Philippe