Convenient vs. upgradable
After typing a lengthy response to this (on my 27" iMac) , get the Mac Pro. I had a whole list of pros vs. cons for both, but it I think it really comes down to scalability for me. An iMac is great, pretty fast, somewhat upgradable, and looks great. But when in 2 years when you realize you need a Solid State hard drive to keep up with the world around you, you'll be kicking yourself for getting the iMac.
If you have the money get the Mac Pro for sure. Biggest thing for me is to have the ability to upgrade. The Mac Pro comes loaded as is, but it is made to be upgraded to ungodly speeds.
As for the iMac: It is next to impossible to switch out the hard drive on an iMac (need suction cups to take the screen off and then you have to do it in a frickin' clean room so you don't get dust behind the screen.... blah blah blah).
I have a Macbook Pro & an iMac. The iMac is faster on paper with the upgrades I've done, but once I put a Solid State Hard Drive in my Macbook Pro, it is the fastest computer I've ever owned/used. I have 32GB of ram in my iMac vs. 16GB in my MacBook Pro. MacBook Pro blows the iMac out of the water.
When upgrading these days, it comes down to hard drive speed. Regular hard drives are a thing of the past (or should be viewed that way when buying a new computer at least). If you don't have a solid state hard drive or if you can't upgrade to one yourself, then the computer your on is just waiting to die.
- Go Team