There were several things that made me lose interest in doing more with the YUI library.
- There CSS fails W3C
- There HTML is only 4.0 and fails W3C
- There grid templates and classes rely on "ems" for column and page widths and to make the widths for IE and "the rest" the same they have the holy hack in a 1000 places.
- You couldn't easily use the grids in a DNN skin.
The three things that I did walk away with were the font sizes and the f"ixed column widths" for their layouts that are sized to work with national advertising sizes, and their "reset" which appeared to cover a few items mine didn't.
This was not what I had hoped for. Hope that you are able to find more in it.
/Dave