Best Z-Wave Dimmer for 2-wire House??

I am moving into new (to me) house built 30+ years ago with only 2 wire electrical setup (no neutral wires in boxes). I will be setting up a Z-Wave system for lighting control. What have proven to be most reliable dimmers to use with VeraLite controller?

I use the leviton VRI06 dimmers which work without a neutral, for the 3 way aux switches you can use the non matching led type that can also work without a neutral according to the instructions, I have neutrals so I use the matching led aux switches. these are great switches that also support instant status but are more expensive. I only use with incandescent light bulbs so i cannot comment on how they work with led or cfl bulbs.

[url=http://www.amazon.com/Leviton-VRI06-1LZ-Incandescent-Capable-Dimmer/dp/B001U3Z6YG/ref=sr_1_2?ie=UTF8&qid=1376774645&sr=8-2&keywords=leviton+rf]http://www.amazon.com/Leviton-VRI06-1LZ-Incandescent-Capable-Dimmer/dp/B001U3Z6YG/ref=sr_1_2?ie=UTF8&qid=1376774645&sr=8-2&keywords=leviton+rf[/url]

[url=http://www.amazon.com/Leviton-VP00R-10Z-Digital-Coordinating-applications/dp/B001HSYT2O/ref=pd_sim_hi_6]http://www.amazon.com/Leviton-VP00R-10Z-Digital-Coordinating-applications/dp/B001HSYT2O/ref=pd_sim_hi_6[/url]