Over the past year, I've built over fifty systems using PCAs LinkWorld Cases and Power Supplies. Decent company, and if you pick up the equipment up at their location, you save shipping. The screwless cases are real easy to work with. They're not built rock solid, but good enough. I've used their 250w, 300w, and 400w Link World Power Supplies and only one 250w blew out so far (which they replaced without problems). I've also bought their High Power Power Supplies as well. All are running fine (so far).