Hi harish !
First of all congratulations for becoming a SCJP !
I'm happy if you find my notes usefull.
To answer your question, as you'll see in this forums, everyone (i think) says that the HFSJ book is indeed the right choice for SCWCD prep.
I confirm, if you want my opinion, that this book is the right book to buy.
My notes were created based on my study of the HFSJ book anyway
Good luck for your SCWCD !