Sigma has been the darling of the lens world recently, producing high-performance products at reasonable prices. Its latest is the 50mm f/1.4 Art series lens, a long awaited addition to their line that we recently had the pleasure of trying out. You're not going to find much more lens for the price.
Nikon's widely-leaked new 50mm ƒ1.8G lens has finally been made official, and comes in at the reasonable, reasonable price of $220. If you have a Nikon SLR and are still using the horrible kit zoom lens, you should go place your order now. I'll wait.