I'm probably going with TWC's 20/2 or 30/5 services, which are $45 and $55 before taxes and whatever fees they feel like tacking on after the fact.
Here's my list of TWC's compatible modems from the Ultimate-75 and Ultimate-100 plans:
Here's their full list of approved cable modems:
Here's their full list of approved modems copied into a Google doc:
I'm leaning towards 8x4 wired modems without routers included, namely the Zoom 5341J since it's the cheapest 8x4 router. I really won't use wireless that much in this particular scenario, and I want to keep the router and modem components separated so I can get the best of each world at this price tier (no FDR / 56GB cards here). I've got a wireless usb 1200ac router I can use as an access point anyway. So which ones have you had firsthand primary experience in benchmarking, or can link to reviews?
I've read that some modems are unusable if they're associated with a current account. Can anyone comment on or verify this?