Re: It's been years since . . . .
"AC - what do you use as a modem?"
Personally I've used a Draytek Vigor 120 for ADSL which is literally one in/one out and power with an open source firewall behind it.
When I moved to VDSL I got a second hand Draytek 2860 which I've been very pleased with and I'm still getting firmware updates for.