Yamaha DTXpress/DTXplorer/DTXtreme

Looking for opinions and experiences on DTXpress III vs. Roland TD-6V.

The DTXpress III and the Roland TD-6V are in my price range. However, I 
want to get a drum module that will be the most versatile. By that, I 
mean a module that will work with a multitude of vendor trigger pads.
I'm leaning towards DTXpress, but using other vendor trigger heads. I 
like the feel and price of Pintech and Hart mesh heads and hi-hat 
triggers. Also, it would be nice if the drum module files can be loaded 
and edited by some kind of software.

Thanks for your time.