The FX7 runs $2000 new at most places and you can probably find it cheaper elsewhere. So it's certainly well within his budget.
And as a standalone video camera, it is light years ahead of any DSLR out there.
It all depends on what you plan on doing with it. The support gear isn't needed for everyone, but it definitely makes the camera more usable videowise. With DSLRs you're introducing a whole new set of skills needed to capture quality images. You have to deal with focus pulling, terrible on board audio, moire, aliasing, rolling shutter, etc.
And I know as well. I use my 7D regularly. I've also owned many other cameras, such as the Ex1.