<p>i don't know about barron's editions, but i've heard that they're a lot harder than the real sats. as for kaplan, i STRONGLY suggest buying a new version (if you end up using it) because the 2003 book will definately have the old sat format; 2005 book was the first one to use the new format. you wouldn't want to be studying the wrong format heh.</p>
<p>Hmm, to be quite frank, you don't NEED that many books to do well on the SAT. You just need to use them properly. I'd say your barron's (both standard and 2400) are great prep and if used properly will get you a good score. Blue book is great for accurate tests. </p>
<p>Stick with what you've got -- don't buy any more 'till you've learned every shred of information in what you've got and taken every practice test you can. And by that point, you won't need any more -- you'll be ready.</p>