Guys, thank you all for the quick responses. After researching the web and reviewing all the comments, I went for Nikon 35mm 1.8. I've realized that the second option that was getting most votes (Nikon 50mm 1.8) was really mostly (if not exclusively) just for portraits. 35mm is much more versatile for the same buck.
I've just mounted the lens and took number of indoor shots with very limited light, and I can see why this lens is getting such a great reviews! Night and day difference in low light conditions from my everyday lens Nikon 18-200mm VR. I'm shooting with ISO 400 to 800 (in appose to ISO 3200) with much nicer results.