Antec One Mid-Tower Case Review @Hi Tech Legion
 

The Antec One has been released to meet the needs of the budget gamer or builder. The Antec One features many essentials not even found on their One Hundred. The One offers tool free 5.25" and 3.5" drive bays. PSUs are bottom mounted, but they've also included a washable filter over the PSU intake. The One features a large motherboard tray cut out for easy CPU cooler installs and swaps.

http://www.hitechlegion.com/reviews/cases/17409