Experience with XSLT in IE6?

Hi.

In a project I'm involved with, we have XML data which we transform to HTML 
using XSLT.  The plan is to do the XSLT transform in the browser client 
(IE6.0 - we control the clients and can specify the required browser).
Does anyone know of any gotchas with doing this?  Anyone have feedback on 
doing this in a production system?  Are there any issues with caching (of 
stylesheets, xml docs, or transformed output) that you know of?  Is there a 
site or book where I can find this kind of information (I haven't found it).
Thanks much,
Jacob