Auralex acoustics for a poor college student

[acoustic84]

So I'm a poor college student and I record in a small room, somwhere around 10 x 12 I'm thinking. Theres one fairly small window. I record only acoustic guitars and vocals. There's 2 auralex products I was looking at and I would like to know what yall think is better. Theres the Aural Xpanders, which arent really room treatment. Its foam you put around your mic's. Then theres the 12x12x2 24pc wedge foam. I know it's not much but i don't have much money and figured something would be better then nothing. Any help appreciated.

 

[pandamonk]

Do a search on here for rigid fiberglass. It's cheaper and better than auralex foam.