Digital BW, The Print

Just wondering about those, lucky, people who may have multi Gig 
this, that and the other top-o-line current model computers feel it's 
worth it?

Does the computer really work faster with large photoshop images?
Do you end up dedicating the 'lesser' computer to the printer & 
scanner?

For anything other than photoshop I wouldn't consider it...but in the 
back of my mind I'm wondering if your supercharger won't beat my v-8?


Thanks,
Cleavis