This machine has all this. And yes I have one and LOVE it!!!
http://www.sewingmachinesplus.com/janome-MC6600P.php

Since my DH just bought me a Baby Lock Ellisimo Gold last month which has everything I could ever need on it, the only 3 things I need is a good needle, good thread and a little more experience using it.

11 inch harp/throat, auto threader, thread cutter

Automatic needle up/down, threader, and scissors.

1. Auto-pivot as I do a lot of appliqué (presser foot lifts automatimatically with needle down when you stop sewing WITHOUT a knee lift)
2. Auto thread cutter
3. Built-in walking foot

Forward, reverse, and zigzag

Aurora, I like your thinking. I was just going to post - a sharp needle, a spool of Coats and Clarks, and an even stitch. And off of the machine, a bottle of Tri-flow oil.

Tate

I like my knee lift too, but if I could have only three - you hit them all.