I will say that while I'm certainly no expert on PC cases, this case seems like it's much better ventilated than other Dells i've had in the past. Not to mention the build quality is better than any other Dell i've ever had. I've had experience with multiple Dells in the past, and I wouldn't have felt comfortable reusing them for new hardware. This is the first one i've felt might actually be sufficient. And despite feeling very sturdy, at the same time it's light weight and made of metal (only the front panel is plastic).
Ventilation wise there are air holes on one of the sides. There is also a rear case fan that came with it, below the top mounted PSU and pulling air out and away from the heatsink area.
Here's a picture of the side with the air holes-
http://www7.pcmag.com/media/images/215295-dell-inspiron-546-i546-4354nbk-side.jpg
Back of the case (the fan is directly under the PSU)-
http://www8.pcmag.com/media/images/215296-dell-inspiron-546-i546-4354nbk-back.jpg
Picture of the fan itself from the inside of the case-
http://www.redplanettrading.com/ebay/cases/inspiron546/546-empty-fan-800.jpg
I'd still probably at least try this case out at first and see whether it will do ok. If I get all the hardware installed and it proves insufficient for keeping an overclocked i5 properly cooled, then i'll look towards getting a different case.
Ventilation wise there are air holes on one of the sides. There is also a rear case fan that came with it, below the top mounted PSU and pulling air out and away from the heatsink area.
Here's a picture of the side with the air holes-
http://www7.pcmag.com/media/images/215295-dell-inspiron-546-i546-4354nbk-side.jpg
Back of the case (the fan is directly under the PSU)-
http://www8.pcmag.com/media/images/215296-dell-inspiron-546-i546-4354nbk-back.jpg
Picture of the fan itself from the inside of the case-
http://www.redplanettrading.com/ebay/cases/inspiron546/546-empty-fan-800.jpg
I'd still probably at least try this case out at first and see whether it will do ok. If I get all the hardware installed and it proves insufficient for keeping an overclocked i5 properly cooled, then i'll look towards getting a different case.