Shrinkit and the Mac - Help

[recoil@eecs.nwu.edu (Sameer Bhatt)]

I wouldn't be at all surprised if this has been asked... but I've gotta know!!

Shrinkit, long the coolest utility I had has become the bane of my
existence!  (Well, almost)

I never had a HD for my GS, but I have tons of stuff stored on diskettes. 
Shrunk.

Most of it I want to unpack onto my Mac.

Stuffit Expander expands all.... except SHK'd and GSHK'd files.

Is there, anywhere, a mac utility that will un shrink and un gs shrink?

Thanks!