I Passed the test with a score of 74%.
This forum was of great help as I got the strategy to prepare, various links for (free)reading materials. Also, the experience of Ranchers, who have faced the exam, was very vauable.
The resources I used are:
1) XML quick reference (Skonnard) is the best.
I studied it thoroughly and also made notes for revision.
2) Books: Professional XML(Wrox publication)- I read only few begining chapters to build basic concepts.
XSLT(Wrox publication)-This is good book but it goes in great details which is not required from exam point of view.
3)The W3C schema primer is the best resource for XML schemas, and is more than enough.
4) I also read some Developer's work from the IBM site. Good stuff there to build concepts, hence helpful for cracking the scenario based questions in exam.
5) IBM's mock test is must-do stuff.
I am working on SOAP,WSDL so that part was bit easy for me.
I had installed evaluation copy of XML spy, and practiced enough of DTD,Schema,XSL. Hands on practice is must to digest the concepts.
All the best for future aspirants