PS3 Budget Titles. (Got $20?)

Scouting around the area, I'm noticing a good few PS3 budget titles.

Here's what I've found for $19.82 at Wal-Mart stores:

Marvel Ultimate Alliance
Dark Sector
Stranglehold
Call of Duty 3 *Note* this game is suppose to be $29.99, so shh!
Conan

Hmm, Dark Sector is tempting. Though come October, I'm going to have a hard enough time trying to pay for LBP.