Best Wall Pad Solution??

I have been enduring the cheese grater like brutality of a concrete wall during traing for years. This year I am planning on finally padding it and am looking for the most economical bang for your buck I can find. I have heard you can make your own by stapling laminated vinyl over closed cell foam and plywood before mounting to your wall, but I am not sure I want to invest 400+ dollars on something that "should" work. Anyone have any tips or experience with different wall paddings? Thanks.

son, you want to be an Ultimate Fighter? screw the pads, embed spikes in the walls... ONLY THE STRONG SURVIVE!