To be honest, the WLC2006 will work for you. They support up to the 4.2 code which is a very good stable code:) If you want to spend a little bit more and you need to run a higher code like 5.x (stay away from) or the 6.x (okay but new) then the WLC2106 is a good choice. Again... the WLC2006 would work for you.
-Scott
*** Please rate helpful posts ***