well i woud never get a case with a psu for 50$. the psu that will prob come with it will be garbage. so ill just give u links to cses without psus.
codegen case, i recommend this one the most for budget
there are alot of others. i would go with the codegen one. proof of its l33tness
anandtech gave it edotrs choice gold.
We hand our Editor's Choice award over to Codegen's 6209 for its top performance in our thermal benchmarks, a solid construction, as well as features such as a CPU air duct, tool-less expansion slots, and a full set of auxiliary ports. With a price of $32, it is not much more expensive than the others and is well worth the money with the combination of features and performance it provides.