Marker in WW BG is a good example of an AP hunter for the Horde side; Improvise is a good Alliance example- most of what they have is still do-able, but no idea if it'll last past 3.1.
Also keep in mind that I hear Skinning is better for the hunter class, if you can spare the stam.
[char=Korialstrasz]Marker[/char]
[char=Uther]Improvise[/char]