Anything as long as it's not Linksys. By the way, Linksys brand
name may be gone soon... Cisco has plans to phase it out and name
is Cisco rather than Linksys. By then, Cisco routers will be
recommended again... if they solve the stability issues. 
Netgear, 3Com, Dlink, Belkin are easy to configure. You could get
either of them.