Desk ergonomy - long hours at the desk

[Jds81]

I would also agree with you that standard desk height is with a keyboard on top, and an undermounted keyboard drawer can help. I did find my knees sometimes hit the keyboard thing, but it was still pretty good. I then used an ergotron sit stand station that had a keyboard mount that sits below desk level when fully down. This was a good solution, but needs a sturdy desk.
If I was still going back and forth at my desk, I'd still be using the ergotron.

 

[ccc118]

I would recommend looking into a sit/stand desk w/ an anti-fatigue mat. Having the flexibility to raise and lower it gives you the flexibility to take breaks so you're not stuck in the same position too long.