This week's book giveaway is in the OO, Patterns, UML and Refactoring forum. We're giving away four copies of Refactoring for Software Design Smells: Managing Technical Debt and have Girish Suryanarayana, Ganesh Samarthyam & Tushar Sharma on-line! See this thread for details.
I think the important question is - what kind of processing do you have to do with the big XML file? For a simple pass through the entire document, extracting specific information, SAX processing will use very little memory. If you have to modify the document structure extensively and rewrite it you may be buying more memory... How big are we talking about anyway? Bill