WHICH SCHEME?

Hy guys.

Im about to embark on reading SICP.

Which scheme implementation should I use.

Ubuntu's MIT scheme package fails for me, so what about guile, gambit, ikarus, scheme48,

>>16
My implication is that the statement:
Guile also includes bindings for GTK+/GNOME, making it practical to write modern GUI functionality within Guile.
is entirely irrelevant, since none of the core Gnome apps actually use it.