Internal Inspection:
After removing the the doors, we get a general idea of the internal layout of the Gladiator 600. In the below left image we can clearly see the five side-mounted hard drive bays, the five 5.25" optical bays and their quick connect mechanisms, the cut-outs for cable management, and the top-mounted and front-mounted fans.
As shown in the above right image, both of the included fans are Cooler Master branded and rated for 1200RPM at 17db. They are so quiet, they can't be heard over the other component fans in the case.
Accessories:
Cooler Master has included a box of accessories with the Gladiator 600 which helps to make this a tool-less case. Included in the box are five sets of hard drive rails, a 3.5" to 5.25" drive converter (for a media reader, fan controller, or a floppy drive), a fan filter, and a bag of hardware including mounting screws and motherboard standoffs. They have also included a few zip ties to help with cable management, an independent PC speaker, and instruction manual.
The fan filter (pictured to the left of the manual in the above left image) slides very nicely into the bottom of the case. As you can see in the below right image, it should help keep any dust from entering your case.