I've got a good ergonomic keyboard with a built-in squishy wrist rest. I can't type on standard ones any more. The keys are too close together.
I've got a good chair with three-way ajustment - height, back, tilt.
I have a tiltable foot rest courtesy of Ikea.
It seems to be the monitor that's throwing it off. If I get the chair and keyboard comfy, and have my neck in a (somewhat) comfortable position, I'm only able to see about the bottom 2 inches of screen. To see the screen properly, I have to tilt my head back and look up. If I move the chair seat up to see the monitor properly, my thighs hit the bottom of the keyboard shelf and my shoulders get scrunched up. Monitor's as low as I can get it.
Is it possible to take off the swively thing on the bottom so it would be sitting directly on the desk?

It would be about 3" lower and that might do the trick.