the ideal tower case has external 5.25" drive cages top to bottom (i.e. Antec 900). I was reading some articles on SilentPCReview and found a list!
brand / model / (5.25 bay count)
AeroCool VX/VS-9 Pro
Antec 1200 - (12)
Antec 900 - (9)
AZZA Helios 910
Chieftec Smart WH-01
Coolermaster Centurion 590 - (9)
Coolermaster Stacker 810 - (11)
Lianli PC-P80
Lianli PC-P50
Lian Li PC-A77FB - (12)
Nexus Prominent
I just put together a build with the new Silverstone CS380. I considered the 804,but went for this instead: http://silverstonetek.com/product.php?pid=709&area=en
It comes with 8 hotswap bays and another 2x 5.25" bays (for a potential 3in2), total capacity 11 3.5" and space for an SSD cache drive.
You get a backplane for the hotswaps that only needs 2x Molex for power. The SATA connections are locking, so it feels quite solid.
Fans over the drives are not that pushy, so drive te