How do I read very large XML files

Hi, I'm new to scala and would like to write a program to edit x3d files.
These tend to be very large XML files which contain large arrays of integers
and floating point numbers. It would therefore not be very practical to read
the file into memory in its semistructured text format. Instead I would like
to read it directly into a tree structure of classes each of which which
stores the numbers as Array[Int] and Array[Double] (or perhaps List[Int] and
List[Double] ?).

If I were using other languages I would use the SAX interface, and I can do
in this case, however since Scala has built in support for XML it seems a
pity if I cant use this?

As I understand it scala.xml.XML.loadFile uses the DOM interface which puts
the whole file into memory in text format which would use all the RAM and
slow everything down. I realise I could then create my own class structure
from this but then there would be two versions of the whole file in memory
at once.

So is there any built in way that I can read these files directly into class
types that I have defined rather than a DOM type structure? Or, to put is
another way, will Scala live up to its name and scale up to reading very
large XML files?

Thanks,

Martin