Builder's Choice.  Very nice case from Antec.  It features a 120mm fan in the back to keep it cool and more quiet than the others listed here.  Definitely worth spending an extra $40.00 to get a quality product.
Quiet, understated and very practical, the NSK3480 series MicroATX Tower continues the innovative standards of Antec's new Solution Series of enclosures. Designed around a high-efficiency 380W power supply. This was previously named the NSK3300 with a 300 watt power supply but they upgraded it.  It also features many Quiet Computing technologies making it an ideal choice for corporate or home environments.  

The Antec NSK3480 MicroATX case is designed for the computer user who cares about budget and the environment as well as the sound coming from the case. The included power supply is the high-efficiency EarthWatts 380 Watt ATX12v v2.2 power supply. It is certified 80 PLUS and has Active PFC (power form correction) so that it is an amazing 80% efficient at loads between 20% and 100% of capacity.

This means that you're saving energy and money. A dual-chamber configuration separates the power supply heat and noise from the components. The hole leading from the power supply is even adjustable to reduce the amount of heat and noise that escape into the component bay. A rear-mounted 12cm TriCool 3-speed fans draw air out of the case to keep the components cool and there are provisions for the installation of two 92mm intake fans in the front for additional cooling.

Antec makes a similar one to the 3480 but is a little taller.  It's called the NSK4480. Also a nice case for the money.

 

 

 

 

Other case styles are similar to this one.  This is an In-Win - 350 watt power supply.  This has a 92mm rear fan.
The pricing is better ($20.00 less) than the Antec but still does the job.
At a recent Intel Conference they were using this enclosure.

To help locate what size power supply your computer should have, you can use this handy PS calculator: 

http://www.antec.outervision.com/