I have a DI-524 wi-fi router right now, but its starting to fail on me. First off, do i need a Gigabit wi-fi router? My question about them is, if my PC has a Gigabit NIC, will it work when i connect to it a 10/100 port? I want my next one to be Wireless-N, 100-200 feet range, IP, MAC, URL, and Domain Filtering, SPI, VPN pass-through, custom Firmware, and it MUST have a On/Off power button. So, that rules out D-Link, right? Some help would be great.