[jQuery] ExtJS

[jQuery] ExtJS


Inspired by this Christmas Calendar
(http://catalyst.perl.org/calendar/2007/1) i want to ask for input regarding
ExtJS vs. jQuery.
The ExtJS overview and demos are very straight forward and rather impressive
at a glance. I guess that what makes the biggest impression is that the
library seems to fit together seamlessly. jQuery OTOH seems more like a
toolbox where you choose plugins yourself with the risk that there are
incompatibilities - but the tools can be more powerful.
Is this a fair statement?
The link above mentions these widgets (or plugins).
* window
* layout
* tabs
* form
* toolbar
* menu
* tree
* combobox
* grid
Can you put together a list of jQuery plugins that matches ExtJS and that
plays well together?