RHEL borrows most of its features from Fedora anyway, but only once they've stabilised. If your PC can run Fedora then it should run RHEL. If you can't get a copy of RHEL for free legitimately from your school/college/university then you can use CentOS instead, which is exactly the same as RHEL minus the branding and the Red Hat Network commercial features (it also uses the YUM package manager like Fedora). It's 100% compatible as long as you only use the default repositories.
What you use really depends on your course requirements.
As for your original question, since I have only used Red Hat 9 once, and that was about 4 or 5 years ago, I can't really answer it. But I'm fairly sure that CentOS uses GRUB and gives you the option of where to put it. If it doesn't, you can always manually configure grub afterwards.