you can get wireless ADSL gateways with wireless cards bundled. Router wise, I have only used NetGear DG814, which has given me no end of hassle with the 4.8 firmware but which runs quite stable at home with the 4.6 so I am really not sure how to rate it. It comes with the 4.4 firmware on it to start with, I really dont recommend upgrading to 4.8 though
The DG834 has a pretty strong firewall built into it, and DoS and stuff like that. They are pretty easy to setup and get working though.