I also have to recommend that you look at the Academy 1/35 PzKpfw IV(H). It is a beautiful kit, builds well, and comes with a set of Zimmerit. There is also a much maligned PzKpfw IV (F1, F2, and G) by Italeri that also builds into a nice model. We often ignore these "non-standard" brands but there are real gems to be found there. Tamiya is also coming out with a new PzKpfw IV(F1) in December.
Finally, TriStar has an excellent series of Panzer IVs, if you can find them.
Bill