There are some really great tools out their that have xml parsers and everything. One
ide that I like to use is XML Spy which gives me a great environment to work with and especially the ability to work with multiple files for the internet, like these types of files:
xml
xsd
xsl
xslt
xdr
svg
smil
wml
rdf
xhtml
html
just to name a few.
I also use winedit and textpad. I get to create certain parsing files to use with them.
-Ray