Personally, I have stuck with Linksys routers (although D-Link has been good to me as well). I believe the model number for the one that I have used the most is the SRX200. I have had a lot of NevoSLs interact with that router and it has been very good.

Since this is the first time you are working with the NevoSL, you should definitely do what NevoGuy suggested and take a look at the stuff they have in the dealer section of the site because you will most likely need to tweak some of the settings on the Linksys router to work reliably.