SAT Prep courses?

<p>Anyone know of any good SAT prep courses? Are they really worth the money and time? Without any studying, I scored about a 1800-1900 on the SAT and I'm hoping to improve to about a 2300 or so. The Princeton Review SAT prep class seems ok and I'm considering taking that course.</p>

<p>Any thoughts or opinions are appreciated.</p>

<p>Private tutors work best if you're rich :).</p>