A few pieces of feedback:
I have both the Antec Sonata and Minuet cases and have tried the Silverstone LaScala LC02 case.
The Minuet only accepts 1/2 height PCI cards and microATX mobos. It's a nice quiet case with good PS and cooling but the PCI height and mobo form factors may be too restricting.
The Sonata is very nice and quiet. It accepts FULL height PCI and full ATX or micro ATX mobo's. It's pretty deep though.
The LaScala fit what I was looking for exactly. It has a great size. Only 4 inches high! It accepts full or micro ATX mobo's. It can also accept full size PCI/AGP cards b/c it uses risers. 1 AGP riser and 1 PCI riser included in the box. BUT...the power supply is VERY hot and the air flow/cooling in the case was terrible. So bad that it overheated during a win XP install. I added 2 60mm fans to the case, 1 for air intake and 1 for expelling hot air and that prevented the over heating, but it still ran too hot for me. CPU temps and case temps were peaking around 55-60C under burn-in testing.
I RMA'd the case to newegg and had another sent out. Maybe my power supply was faulty???
I also exchanged emails with Silverstone folks and they were kind enuf to send me a new case cover that includes vent holes above the CPU area. The case I bought from NewEgg did not have these.
I will see how it performs when I get the new case from NewEgg.
Right now I am exploring having my own case built to my specs because I am so frustrated with current offerings out there.
I want a desktop oriented layout(pizza box), no higher than 4 inches, aluminum, accepts either 2 full size PCI or 1 full pci and 1 full AGP. Takes micro or full ATX mobo's. 1 external 5.25 slot, 1 external 3.5 slot, 2 internal 3.5 slots. 250w power supply.
Hope this information is useful!
-tommy