PGSQL and XML

With lots of help from folks on this mailing list, the readme files and other net sources, i've found a simple process for seeting up an WinXP box as PHP/PostgreSQL development environment.

Just as I was getting started to begin work on my PHP apps, I ran into this...

http://www.joot.com/dave/writings/articles/php/

http://www.joot.com/dave/writings/articles/bsp/

and the last message here...

http://www.webmasterworld.com/forum21/3799.htm

Which put me in a dangerous state of mind - thinking.

Should I evaluate XML and XSL to see if it makes more sense using it than PHP scripting? Is keeping the business logic separate from the presentation important enough to switch technologies (at least I'm at the beginning stages)?

What is this Box stuff?

http://www.joot.com/box/

While Box has an open license, does XML require proprietary anything or license fees?

Does PGSQL integrate well with XML or is it a moot point?

Any experience and related input would be very much appreciated.

PS - Thanks to all for re-affirming my decision to go PGSQL and stick to it when my lack of experience got really frustrating! ;-)

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