Integrated amp

Everyone has their favorite. If you don't need a DAC, mine is the Creek 5350 SE. Remote. Detailed. Smooth. Reliable. Great Sonics. Class A-AB. Not digital sounding. Pair it with a Schiit DAC or Cambridge DAC like I do for a great system. 

@drhamlingrichard - What is your primary system? What sources will you be using in the 2nd system? What is your budget? Do you have physical size restraints?

My "main" system, for a small room (10x13) is Totem Rainmakers, EPOs elan 10 sometimes Silverline 17. I switch around a lot. Presently using Nikamachi 10, NAD 7400. 

nad is good; Creek is a step up

Nuforce is an award winning amp and is very inexpensive - may be a couple on Amazon (return priv. may apply) if people have not snapped them all up yet

The Tetra's look interesting. I'd lean towards those instead of the Silverline's.
Both seem to be fairly efficient, and rated at 8 ohms, so they shouldn't be power hungry, but I never listened to either, so I could be wrong.
If going with monitors, you'll probably need a subwoofer to plumb the lower frequencies.
The Onkyo 9050 looks nice, but I think the integrated DAC would be its' weak point.
Do you have a budget for the integrated amp?