Also, if some of the nomenclature prompt confusion just keep this in mind when you're shopping for cases.......
Mini-ATX..........Usually only has 2 large (5-1/4") slots for CD/DVD drives in the front and 1, maybe 2 of the small (3-1/2") slots for floppies/card readers.
Mid-ATX...........Usually 4 large (5-1/4") slots and 2 small (3-1/2") slots.
<-------Certainly the most popular & probably what you'll want to shop for!!!!!!!!!!!!!
Full-ATX...........5,6 and sometimes 7 large slots (depending on how wild the mfgr got dreaming the night b4 design....(he he).....and 2,3 or even 4 small (3-1/2") slots.
You'll see others like "mini-mid" and the like, but "Mid" is what you're looking for and is most easily noted by the 4 large bay slots and 2 smaller bay slots.
Here's a classic example (easily seen on this case) of "Mid" atx and actually a great case for a great price with a "better than average" power supply.
http://www.newegg.com/app/ViewProduc...138-033&depa=1 P.S. If anybody could tell me if they REALLY want us to sandwich the sensor wires (doohicky) for those front temp panels between the CPU & HSF, I'd love to hear success/failure 'cuz I just leave 'em dangling in the case for fear!!!