Charter recently upgraded our 20 down / 2 up cable modem subscription to 25/3 sometime around March 1st, 2010. I had been considering dropping the 20/2 service (which we upgraded to in December 2009) and going back to our older 10/1 service since we've seldom see more than 10Mbps on the download side and 400K on the upload side. Part of me thinks it's because my ancient Linksys WRT54G v1.0 is struggling with a 125mhz processor under Tomato v1.19. While it was fine at the old 10Mbps rate, perhaps the newer 20Mbps feed was just too much. We also have 6 computers tied into the WRT54G v1.0, so when they hit the cable modem, it could be all at once - thereby reducing WAN speed by a given fraction. I have our Vonage VoIP Motorola box using one LAN port, so there's also a constant bandwidth sucker right there. Some things I've not tried yet are disabling QoS, setting a DMZ to one computer to just do a Speakeasy Speed Test, and plugging a computer directly into the Charter cable modem for comparison. While I'm pretty much committed to buying a WRT54G-TM for the extra memory and faster 200+ Mhz processor speed, I'm curious if anybody has ever noticed an improvement in WAN speeds by doing such an upgrade in WRT54G variants.