You can do all of that with Cat-5e as it also supports gigabit network. That said, I agree that crosstalk is lower on cat-6 so for applications such as HDMI over such wires, cat-6 provides better reliability and longer distance runs typically.Just a suggestion, but if you are building a new house, why not wire cat6? Pricing is about the same, but there are many benefits to 6 including lower cross-talk, gigabit LAN support, and modern device compatibility. I know 5e and 6 sound close, but they have bandwidths, a different size, and have completely different end components. 5e vs 6 could be the difference that lets you run internet, VOIP, streaming HD, and streaming music all at once. Hope this helps.