Yes, yes and yes.
"Also am I correct in thinking that my 2008 early Mac Pro has more processing power than the new macbook I am looking at?"
You MUST be joking! LOL!
There will be NO COMPARISON as far as speed, processing power, etc.
You are looking at about a 40% performance boost on the CPU, alone, never mind the boost in RAM.
Coupled with the speed of the drives in the MBPro, you will also notice that your insanely complicated projects that typically take a few minutes to load, will actually load in mere seconds.
GO FOR IT!