Komodo

One day I plan on making a MMORPG, or at least being the lead programmer of an mmorpg project.

Which language will be most beneficial to learn to acheive this? I plan on learning C/C++ to eventually make my own OS.(I love to make stuff, and I love to use the stuff I make.)

Now, I'm talking about overall how the program will run, both Client and Server, bandwidth and packet handling, memory usage, system requirements, etc.

I used to play RPG World Online, a 2D Online RPG made in Visual Basic by a guy named Michael "Micky" Kudlo, it took him 2 years to "finish" it without working fulltime on it.(Website is at www.rpgwo.com).
It lags like a bitch with 70 people on one server.
That's not something I wanna deal with...

Bloodscape was also made with VisualBasic and that kinda lags too(made completely different than rpgwo was, www.bloodscape.net)


That's kinda making me wanna stray away from VB...

The graphics I'm shooting for are like Ashen Empires or Conquer Online (www.ashenempires.com www.conqueronline.com)

blah blah blah...

Any suggestions, advice... rants?