I know Rhino had "Khinsolidated: The Best Of The Greg Khin Band" which compiled all of the major Berksley hits, and there's Imports of "Kihnspiracy" on the Wooded Hill label, which I believe is UK only. The Rhino compilation is well done.
The German label Line Records reissued several Greg Kihn albums on CD. Might have been his entire Beserkley catalog. I picked up 3 or 4 different titles. They're all OOP now.
Aside: Greg Khin is a very popular DJ now in the San Francisco bay area. He has a morning show here where he interviews lots of classic rock icons, tells jokes, and relays lots of trivia from his "on the road" days. He's also an author, I think he writes horror/mysteries. He plays shows around the bay area a few times a year, though I've never seen one. Last, his youthful high voice is pretty gone, and he now has a nice gravely low "announcers" voice. When he occasionally sings on the air, it tends to be a bluesy thing, and he sings low. Sounds good though. Just doesn't work if he tries to sing high. HZ
