Interesting... a 2000STW is cheap enough (under $15 on ebay) to give it a "test" to see if I can get it to work.
Don't waste the $15. I sent Igor down to the catacombs and he returned with one of my 2000STW lamp modules. I plugged it into a powerstrip with switched outlets alongside my ESM1 X10 meter. There's no PLC signal except for when the lamp plugged into the module is turned ON. Obviously, my memory was mistaken.
For X10 your best bet is Jeff's XTBR with modified firmware but I wonder if it can provide an OFF when powered down.
However, if you want to go with Voice Control & WiFi, the dirt-cheap Sonoff (& Slampher) devices available from Itead now support Alexa, Google Home, and Google Nest.
https://www.itead.cc/smart-home.html PS: If Jeff could squeeze an ESP8266 into his XTBR, it would be even better.