i am planning to take up scjp 1.4 arnd jan 26' 2006. i want to buy khalid mughal's book on java certification. there r 2 editions of the book. the first edition is available for real cheap (arnd 8$) on amazon. the second edition is arnd 30$. wud it be fine, if i read the first edition for the test... i mean to ask if there r any significant differences between the first and second edition. if the differences r significant,i might buy the 2nd edition, otherwise i might do away with the first edition.