I'm planning a home network. 2 1/2 floors (a partially finished attic). Unfinished basement. I'd like to create a wired network, with jacks on each floor. There will be a downstairs part, wired from the basement, and and upstairs part, wired from the attic. Question is whether to run all the cables to the basement, where the router will be. Or, I could run one cable from attic to basement, and put a switch in the attic for the upstairs rooms. Any problems with this design? I realize that the one cable from basement to attic will be a potential choke point, but I'm guessing that won't be a huge problem too often--certainly not for websurfing. Thoughts from the experts?