I've done a bit of looking into VRV on Daikin's webpage, From the little bit of reading I've done a split system will be less costly and the only noteable thing a VRF/VRV system can do that a split setup cannot is simultaneously heat and cool 2 different areas of the home. I can't honestly say that I can think of a time in my residential life where I've wanted to do that :d

No expert here, just what I've Googled.

If this is a heating/cooling thing, you might also want to check in to the HVAC forum. Reasonably active forum with good people there.

Thanks for the info Niteshade.

Didn't even think about the HVAC forum (only been on this one and the buying/selling forum). Thanks for the suggestion kirkhall.