Better surely to learn C++ (As in the standard language) which can then be applied in any remotely suitable environment.
Learn the language not the tool.
Other things that might be very worthwhile, VHDL, Verilog, Matlab/Simulink (Especially for a controls guy), at least a passing familiarity with one of the serious EDA tools (Orcad, Altium, whatever), mechanical cad (Solidworks, pro-E whatever), scripting languages are never time wasted (Even really pony ones like writing macros in Excel)...
73 Dan.