I sat for the gre exam on august...for the exam I was looking for two books, one is from Kaplan and the other from Princeton....Kaplan has a lot of stuffs in it and some vague techniques......I like the problem solving ways from princeton.....So just my thought, if you are in rush, use princeton which do not has too many vocabs and has some really good problem solving wayas......also download powerprep software from ets.org for practice....but if you have a lot of time and u r not in rush to give the xam, use kaplan which has a lot of stuffs in it....go through all those stuffs, u will get a good score...
GOOD LUCK on your prep and xm..