I'm confused; your current kit covers the portrait range pretty well.
Originally posted by Mom2Gage Im craving a new lens!
Oh, so it's a craving now, is it? Ok, *that* I can understand.
Ah, you say you want sharpness and speed, and maybe a fisheye. But do you want near or far, new or old, flexible or fixed? (I have an Industar-58U 75/3.5 enlarger lens set in a black horn, with focus fixed at 1.5m, perfect for rather close facials.) For a fast sharp cheap manual fisheye, try the Zenitar 16/2.8 for under US$200. For a different feel than the FA50/1.4, try a fast sharp cheap manual Helios-44 58/2 for under US$30. For razor-thin DOF, try a not-so-cheap ultra-fast manual Helios-40 85/1.5. (You can also reduce DOF with a #1 or #2 diopter close-up meniscus.)
For a Holga look, splice a plastic OPTICAL LENS 50 f/5.6 (salvaged from a thrift-shop Diana or whatever) onto a focusing helicoid -- oops, no sharpness or speed there, sorry. Ok, for brutal sharpness and weird handling, try a Schneider Betavaron 50-125 zoom (on ~30mm extension) for ~US$75. For legendary IQ and sharpness, try a cheap fast manual Vivitar Series 1 70-210/3.5 for under US$50. For a glowing-halo effect, get any dirt-cheap 50-55/2 and carefully crack/scratch the front. For really sharp imagery, get a manual Macro-Takumar 50/4 for ~US$100. Et cetera.