I have a couple cases like this one.. It does the job for a basic setup.
But, for more extreme needs, a little more is needed.
I have a system that runs hot, (dual processors, 3 SCSI drives) so I put it in a Coolermaster ATCS 200 case. It's an excellent case, all aluminum, well vented, etc. But, at almost $300, it's a bit pricey.
Then, there is the Lian Li aluminum case. It's looks similar to the coolermaster, but gives the impression of a step or two down in quality. It can be had for $230 or so.
Anyone know of any better deals on Aluminum cases?