Kemp at 45 is way too much, he always seems to get hurt. No doubt you're keeping the reigning AL MVP in Miggy. I'm liking Zimmerman at 23, Cain or Castro at 17 (is that Matt or Lorenzo?), Darvish at 11, Medlen at 1, AJax at 2, V-Mart at 1, Fister at 1 and possibly Rutledge at 1.
Quick math says that if you keep Castro or Cain and all those guys, you've used only $102. I'd probably take Cain over Castro if its Matt Cain because that way you've balanced out your keepers a little more. I could understand keeping Castro too though.