[key.phone.farm]

I want to up grade my cable modem and router. what should I look for as I plan to constantly expand my farm, should I buy a separate modem and router or should I go for a combo modem router? also what makes a good router worth having don't want to spend a ton of money also don't want to go to cheap to the point that I will have to upgrade again in another 6-12 months due to reaching full capacity. any advice is appreciated.

[key.phone.farm]

what do you look for in a good router as far as speed and device limit