Most places recommend Goo Gone, dish detergent, and a plastic kitchen scrubber.
That should typically be good enough for the shell.
I also recommend a magic erasure here myself. I've used them and they have done well.
Internals I just recommend some Isoprophyl alcohol, some q-tips, and let it dry for quite some time.
You should be good to go.
I really apprecite the reply. That's what I've been reading overal to use. Nice though
to hear it confirmed by someone.
Oh and with the Isoprophyl alcohol, make sure it doesn't have acetone. As this can
cause a buildup over time and eventual problems.
But now all I need is to hit up some flea markets. As the game stores around here are pricey.