I recently picked up an Antec SX830 case for a cheap system I was putting together and was really impressed on how well built it was.
Things I liked about it:
Side doors come off very easily. Card side just has a handle you slide with a key you can lock. At the computer store I was shopping at they didn't have any of the doors on the cases, but I had fun annoying the staff by asking for the doors for all the cases and seeing how easy they were to put on. On one of the cases (I forget what brand) I couldn't get it on and the person helping me spent like 5 minutes trying to get the door on. That is the extreme case though. The Antec was by far the easiest.
Thumbscrews and sliding out floppy tray.
Sliding out 5 1/4 bays with clips holding them in.
Lots of SNAP-IN fan slots. Came with 2 extra 8cm fans.
Large front vent.
Things I didn't like:
Motherboard tray does not come out.
One of the fans came making a high pitched whining noise. I exchanged it at the store I bought it at for another.
Antec 300W Power Supply that it came with does not have a monitoring plug.
Both of the fans it came with are 4-pin non-monitored. I am not sure what the cfm on the Antec fans is, maybe they have to be 4-pin do to the power draw. I have heard some of the more powerful fans can damage motherboards by drawing too much power and therefore have to come in 4-pin.
There are some other really cool cases I have seen on the net and have seen good reviews for. However, I like to feel up a case before I buy it. :>
The ones that have interested me are:
http://www.computersdivine.com/cases.htm
I would really like to see more info on these cases. If I see that a lot of people love them I will just have to buy one.
and just cause it looks cool:
http://www.yeongyang.com/yy-0210.htm (It comes in black)
Seems to sell for about $199 in black.
ftp://download.intel.com/support/motherboards/server/l440gx/chassis/yeong_yang_yy-0210.pdf
although this person's account of it doesn't seem that great:
http://forum.arstechnica.com/forum/ubb/Forum9/HTML/000403.html
The Chenbro that was mentioned to be better is $600 for the Ultra (comes in black too). Supports 21 fans? Out of the range of what I'm willing to spend on a case.