G4 Powerbook 17" Options

[THE DUDE]

Hi Everyone...
First off...I would like to say that this forum is great!!!
I am a new member and definately a Mac fan. I am in the market to buy a new computer and have decided to go for Mac all the way. I am seriously considering the G4 powerbook 15" but now the 17" has intrigued me further. I know many people have a problem with its size but for me its actually a benefit having such a large screen to view when working. I will be using the PB mainly for music production..you know sampling, looping, multi-tracking...whatever. Considering I buy the G4 PB 17"...my ideal set up will consist of Logic 6 or Cubase SX running on OSX..a software sampler (Halion 2.0 or Logic EXSP)...the audio card will probably be the Digidesign M Box so I can benefit from having Pro Tools...for a midi controller I am looking at the small Oxygen 8 keyboard. Eventually I also want to get a Firewire drive strictly for the audio considering that the internal hard drive is running @ 4200 according to specs. Will I have a problem if I start with the internal drive for now. Obviously I want to be able to do both midi and audio based production together with some VST instruments and EFX. My question is...will the G4 PB 17" accomodate my demands and needs. I have heard from others that its a true workhorse and I shouldnt have a problem. Is there anyone out there that can shed some light on this for me possibly user experiences...pros...cons...or just good old opinions.

Much respect and thanks in advance.
PS...I will soon be running with the Mac gurus..LOL