I stronlgy doubt if you'll find a C++ course optimised for you needs. You can get OO,Win32, Unix or even database oriented C++ courses, but outsideacademia there is little chance in the numerical stuff I assume you want. I've not come across anyone who will directly train you instuff like attaching to Excel either. In my opinion, QA training are about the best, I know some of the lecturers and they are first rate. For instnace one is a math/programmer typeat Barlcays Capital. Pymalion aren't bad either, if you're focusing on Windows flavour C++. Both have sites in the City.
www.qa.comGood courses aren't cheap, in fact good or bad they're all about the same cost.I'd go on a decent OO C++ course, then buy a couple of the texts recommended in the Books topic.DominiConnor