Hi Everyone
Firstly, I apologize if other people have already posted similar questions to mine but I'm new to the site (this is my first posting) so please bear with me.
I currently own a G4 800Mhz iMac with a 15" flat panel screen and 512 MB RAM. It's okay for most of what I do (graphic design) but the screen is WAY to small and it can be a bit sluggish sometimes. I'm considering a major system upgrade to either:
17" PowerBook with 30" screen
or
G5 PowerMac with 30" screen
I know the G5 PowerMac would leave my current iMac in the dust, but I don't know how much faster the PowerBook would be than my current iMac?? If the PowerBook offers a reasonable performance increase over my iMac I think I'd go for that, as I love the idea of having a portable system. However, I wouldn't want to invest almost $5,000 CDN (extra RAM, AppleCare, taxes, etc.) on a PowerBook that wont offer a performance increae over my current system.
I'd really appreciate any advice or recommendations that anyone may have.
Many thanks

Firstly, I apologize if other people have already posted similar questions to mine but I'm new to the site (this is my first posting) so please bear with me.
I currently own a G4 800Mhz iMac with a 15" flat panel screen and 512 MB RAM. It's okay for most of what I do (graphic design) but the screen is WAY to small and it can be a bit sluggish sometimes. I'm considering a major system upgrade to either:
17" PowerBook with 30" screen
or
G5 PowerMac with 30" screen
I know the G5 PowerMac would leave my current iMac in the dust, but I don't know how much faster the PowerBook would be than my current iMac?? If the PowerBook offers a reasonable performance increase over my iMac I think I'd go for that, as I love the idea of having a portable system. However, I wouldn't want to invest almost $5,000 CDN (extra RAM, AppleCare, taxes, etc.) on a PowerBook that wont offer a performance increae over my current system.
I'd really appreciate any advice or recommendations that anyone may have.
Many thanks