After asking this question I'm thinking the 35mm prime lens will do the job for me. Since I take a number of photos indoors and in low light conditions, this lens will let me sty reasonably close to my subjects and still be crisp. The question now is do I get the new 35mm DX lens or the 2.0f full frame. I'm looking for any justification for the extra $100 or so for the 35mm 2.0f. Here are links to the Canadian prices:
Thanks for all the help and insight. Really liking this stackexchange site so far.
Update: Just wanted to state that I have a D90 so the auto-focus motor isn't an issue. More so the quality of the lens and the speed of focus. Update #2: So I just bought the 35mm DX 1.8f off of B&H. First time ordering from them, so we'll see how that goes. Should get the lens in a couple days - excited to give it a try and see how much difference it makes compared to the 50mm prime. Thanks all for your help and suggestions.