Pc Defector Seeks Asylum, Newbie needs help Options

[focus11]

Greetings one and all.

I'm a PC user who's about to buy a new MAC G4 for a very specific purpose and I need to be certain of something before I go ahead.

My friend and I are musicians. He bought a G4 last year and since then, he's been running Emagic Logic 4.7 on OS 9.1. As the more technically minded of us, I've spent some time studying the posts in groups like this one in order to troubleshoot the various problems that creep in from time to time and, fingers crossed, my finances will soon enable me to become a proud owner of a brand new G4.
For compatibility reasons, I need my system to be as close to his as possible which is why I've hunted down an old copy of Logic 4.7. The problem is that as far as I'm aware, Logic 4.7 only works in OS 9.1 (not OXS Classic Mode) and I keep hearing that newer G4s will only boot into OSX. I was thinking of formatting the hard drive when my MAC arrives and installing OS 9.1
which I intend to buy at the same time as the MAC. However, I'm given to understand that the newer G4s are "hard wired" to OSX or something like that. Since I'm about to spend a considerable amount of money on a system who's configuration is utterly essential, I'm a tad, shall we say, worried.

Does anybody have any concrete facts that I can work with and/or informed opinions that I can make use of?

Any help would be greatly appreciated.