I tend to think that autofocus is overrated. Ok, I know that there are situations where it is essential but, for the most part, I do not like the camera making decisions for me.
My 50mm f/1.8D has not been off my D40 ever since I got it. It is a wee bit narrow for general use, I suppose (I am looking forward to getting my hands on a 35mm for that reason) but still the 50mm is a fantastic lens for the price, great for group portraits, pets, picking things out on the street and such.