My thoughts on making this case ideal :) -
1) update a bit length for this case to be able to accomodate largest rads these days - 4x140mm hw labs black ice gtx/sr1 560 ones (153/605/54mm) .. to not make case overly long, maybe fit it that way so that it's end with fittings for attaching tubes is outside case's back wall with tubes going inside through standard holes for liq.cooling like in other cases. For those users that wish using smaller rads, cut out hole in wall might be covered with simple plate bolted on. Afterall, if one pays for 'best of' case, why not make it possible to use 'best of' other components like rads? Especially when there are almost no cases arround in market that would allow inernal mount of these big monsters without customisation/cutting, so less the competition :)
1a) front panel power/reset switches and ports like esata/usb/firewire might be located on some plank for 5.25 bay that could be moved/mounted wherever one wants, to save extra case length on top for mentioned rad.
2) change PSU mount so that it will suck air from outside case from it's bottom
- afterall, air near floor is colder then from compartment of motherboard, so PSU's temps will be lower and it's vent will rotate slower/quieter.
3) add _ergonomically_&_easily_ removable for cleaning dust filters for all holes where air is sucked in case - for psu, for pushvents for rads on top and bottom, for vent blowing in case from front and alike
4) imho it would be best for better airflow to cover all ventholes with less restricting guardwires (i don't know right term, english is not my native language. i mean like round ones on eg. some PSUs vents and such), instead of some pattern small holes. = less restricted and more silent airflow.
5) i like for case to not be filled with stuff i don't use .. i'm pointing to enclosures for mounting 5.25/3.5 devices. Eg. lot of people will use only 1 dvdrom and 1 or two SSDs. Then why one need enclosures for almost all height of case?
- I propose making it modular. Eg. 1 enclosure for 1x5.25, 2 enc for 3x5.25, 1 enc for 4x2.5, 2 enc for 5x3.5 disks. With bolting on needed ones user can customise case to whatever needs he might have, from eg. using 1dvd + 2 5x3.5" hotswap enclosures fitting per 3 5.25 slots, to 1dvd and 10 internal 3.5, to .. well, to 1 dvd && enclosure for 2.5 SSDs only. He just needs to bolt on choosed enclosures (for simplicity - to one of side walls). For cheapening config/production needed enclosures could be selected in online configurator when ordering or ordered separately.
P.S.
Same thing about modular/and choosing when ordering or buying separately might be aplied to other areas aswell. - eg. to order case walls with precut windows for different sized rads, be it 2-3-4x120-140 or whatever, and just bolt on needed/right one - and voala, no custom fitting/cutting case needed at all. Also radiator mounts could be ordered exactly ones user might need for his rad size. And just like with enclosures .. changing rads, or changing pc role to eg. that of file server - just order needed replacement parts and exchange/bolt on right ones. For furthier cheapening of used materials and shipment cost(package size) of replacement parts side wall could be divided in 3 parts for main motherboard compartment (where user might want one with/without window), to part per each rad department where venthole count/size might differ. Top of case might be customisable/interchangeable aswell, in case if user wants mount rad to top, not vertically. As for front .. best would be load of 5.25 planks with integrated air filter. With optional one for 3.5 device. This way those closing planks could be used for different configurations of enclosures/extra mounted blowing in fans and such.
P.P.S.
I almost wanted to add point about holes for cable managment, but someone already brought that up here. In my eyes etalon for cable managment is Obsidian 800D. Holes for different format/sized motherboards, placed in lot of possible places for wierd motherboards were cable attachment places migrate all over it not unlike most common implementations and neatily covered with cut rubber taps. It simply looks best from all others out there.
P.P.S.
oh, and minor detail - imho it would be more stylish if corners of case would be angular (yet again like obsidian :) ), not rounded as for temjin TJ07. as free bonus - one can better use full case length in case where big rad is bolted on directly to top or to side, no need to move it back or put at distance from wall to fit with rounded corners.