I only consider a pan to be "oven-safe" if it doesn't have any plastic, rubber, or wood in the handle or lid. I only have a few pans that qualify for this, all four cast iron skillets, my two All-Clad pans, and my two Calphalon pans. The All-Clad and Calphalon are all tri-ply SS.
I really want to get the ultimate in stove-top to oven pans, an enamelled cast iron Dutch Oven, but I don't know if I'll have enough left from my taxes to do it.