Thanks for responding Leo.
I am currently using a 2009 Macbook pro and I am running El Capitan so that part isn't an issue. My concern is FCP7 is 32 bit so does the latest computers run 32 bit programs as they may only be 64 bit? I can run this computer in 32 or 64 bit and have no problems -- I am actually running it in 64 bit and it is supporting it ok.
So I guess the answer is yes but I would like to know from someone who is actually running a latest system to really know - just running the operating system doesn't necessarily mean that it will run on a later machine. But thinking on it, if this computer is running a 64 bit program and runs it, I guess it will run - but that might be just these earlier machines that run 32 and 64 bit. Shame to spend $5,000 and nothing works!
Thanks again.