I recommend Linksys wireless routers. Very often refurbished Linksys routers are on sale at Newegg, US - and maybe at Newegg Canada too.
I have very good results with Linksys routers, and will look for some suitable models.
This is what I currently have: http://www.newegg.com/Product/Product.aspx?Item=N82E16833124471
(works great; 2-story house)
My previous model was a Linksys E1000 wireless router - also worked great. Now in storage as a spare.