I'm starting to question the 'daily driver' concept.
As I type this in, right in front of me is a PowerBook, a Quad G5, a G5 DC and a MBP. There is also a Thinkpad. The Mac I am typing this on is a MBP.
Each one I use for a specific purpose. If pressed, I would say my 'daily driver' is my Quad, but the reality is that there is no ONE specific Mac that I use to do ALL things.
I browse the net in my chair in the living room using my PowerBook. I also use it for word processing. If I need to watch video online or access financial accounts I swap to the 15" MBP.
If I am going to have lunch or dinner and the nature of it requires me to use a plate, I use my Quad while eating. I also use the Quad for graphic design and word processing.
When I file my taxes, edit my resume or deal with financial documents I use my G5 DC.
The 17" MBP goes with me when I am out. The 17" PowerBook goes with me to the coffee shop.
The Thinkpad gets used as a bridge to Dropbox that all my unsupported Macs can access via filesharing. I use it when I want to watch video (stored on my Quad) on my 4K TV.
On all of my Macs and my PC I can access all of my email accounts.
So…which one is my 'daily driver'?
This is getting hard to answer now.