What I Use
Mainly due to reliability rather than security reasons I 'split' out my network setup.
I now have:
Zyxel Prestige 660R-D1 ADSL modem/router (not vulnerable to the Misfortune Cookie despite Checkpoint claiming that is the case) - £25 from Amazon - all external management access disabled
Ubiquiti EdgeRouter Lite - main router/firewall, very fast and slick, regular software updates - £80 or so from Amazon - no wireless
Ubiquiti UniFi UAP-LR - wireless AP - again, very impressive - £70 or so.
So, that's about £175 already.
I use TPLink powerline everywhere I can so wireless is just phones and laptop, its a big house so that probably added over another £100.
Regardless, well worth it. Broadband performance is amazing considering my remote location and distance from the exchange. Haven't had a single complaint from anyone in the large family about performance, reliability or Facebook not working since. That used to be an almost daily occurrence, normally resulting in a reboot. Worth every penny.