Can someone tell me where I can get aftermarket waterslide decal sets for WWII US Armored Divisions?
If you are going aftermarket try dry transfer in lieu of water slide. The results are much better. Archer do several US Army sets:
http://www.archertransfers.com/USAFVcatalog.html
and them there are other companies like Ace decals, Bison Decals, etc.
Echelon are going to release a WW2 range in a few weeks. http://pachome1.pacific.net.sg/~kriegsketten/