Hello!

Look aside from your hard work! 
I've found a wonderful game. 
I've spent very nice time playing this amazing Tetris 4000! 
It's colorful and dynamic 3D realization of tetris idea. 
Here are some links for you to enjoy it:

Download Tetris 4000: 
http://www.alawar.com/Tetris4000.exe

Home Page: 
http://www.alawar.com/games/tetris4000/?from_game_Tetris4000Tell

Registration page: 
http://www.regnow.com/softsell/nph-softsell.cgi?item=1660-25&vreferrer=Tetris4000Tell - I think $10 is acceptable price for a good game.

Hope you'll like it as I do.
Best regards,