Picking up 5'er tomorrow...what will I need to buy?

If you are buying from a dealer, they usually throw in a startup kit of basic hoses and stuff. So take a look at that before you buy anything. It may not be the best, but it will get you started and then add/replace as needed.

I've got a pressure regulator and never use the darn thing. I guess where we go, too high water pressure just isn't an issue. Your mileage may vary.