@Beast96GT
The best C++ compiler for that system is Storm C 4.0 .
You can get Video Toaster products in Chicago from
DiscreetFX.
There is very little done in all-out C++ on the Amiga so you might find yourself looking through old C89 and newer C99 source codes more often than C++.
You can find lots of downloads for the Amiga at
the Aminet.
Also, if there is a real-time clock in the old Amiga, take out the battery before it leaks.