Still looking for those live shrimp. If you have current details, please share.
Clark Market, the Korean grocery on Kedzie north of Lawrence* has very nice seafood, really cheap. I saw large, head-on shrimp last night. Also, if anyone is interested, they have a nice sweet and spicy whole tiny salted crab panchan right now. Nice with beer. They seem to rotate the panchan exotica: last time it was a spicy, oily raw oyster affair that I really liked in small doses.
*Same mall as Kang Nam (dolsot bibimbap), Noli's (Albanian pizza/borek), Sahar Meats II ("Middle Eastern" butcher and general store), Jaffer Sweets (Palestinian pastry), and now Sahar's pleasant kebap place, Sahar Pita; and sharing a lot with the excellent Mexican grocery Lindo Michoacan.
PS, the new pupuseria just east on Lawrence had a decent amount of business last night, though I was in too much of a hurry to drop in.