SAT math prep ?

[Laurel-in-CA]

My dd's math scores are dragging down her whole profile, according to PSAT results. She's going to spend the summer working on math review and I am looking for help on that. We're debating between:
--Chalkdust SAT Math Prep - around $110
--http://www.videoaidedinstruction.com/1531.html - around $170

Has anyone used either of these and can give me feedback? Thanks lots!

[Sandy in Indy]

We used Chalkdust SAT Math Review with good success. My teens worked through it independently. DD used it for her second SAT attempt and raised her math score 100 points. DS worked through it before taking the test for the first time and did very well.

It's well worth the money.

[Sharon in MD]

It helped us and has excellent resale value!