Thanks to everyone who replied for all information.

As my quote was for Jandy before they switched to Pentair (they told me they would be changing in the future), it would have been $1600 to switch to the Pentair system and get the Intelliflo pump (I never got whether it was the full Intelliflo or 4x160). In either case I'd gotten used to the idea of Jandy and decided to stay with that. I did upgrade to a 2 speed pump and the relay to control it all from the PDA -- so hopefully I should get the power for the spa and the efficiency for the pool. The spa will be plumbed with 2.5" (I was wrong about the 2"), the pool will have 3 separate 1.5" lines and I've decided to live with that. I kind of feel liked I've pushed them out of their normal bubble enough (I know not a good reason) and I think the three separate lines should be sufficient. I definitely get the feeling no one else usually questions choices / requests changes, but that interest is what makes us all more particular.

The dig will start either Friday or next week depending on weather. Even though I feel like I have already learned so much here, I'm sure I will have many more questions and hope to contribute when I'm a little smarter about all this.

Jason