the case that you just listed above is beautiful.if you like the lian lis,then i would definitely go with the second choice.there are a few things about that case that are really nice about it.one,having a bottom mounted power supply location with more overhead room.two,all the HD's can be mounted on the bottom of the case which will allow for more air flow and current that having them right there near the already running warm mobo.three,the fact that everything pretty much stays hidden and clean looking.four,you can mount a fan to the front and give it a direct line air flow and feed from the front to the back.a good rule of thumb when air cooling a case is to have a even number of fans so you will have a balance between intake and output.

the reason i suggested the other case was because you will have two video cards crossfired and each of those video cards runs at 122 degrees F idle and at 156.2 degrees F loading.it also uses 200W idle and 444W loading.so,with these facts known,having the case remain cool and with a good flow to direct the heat off the cards and everything else is of upmost importance.as far as them being loud,the thermacooler is the loudest thing on it and from everyone i have talked to who has used them or been around systems running these cards,it's not very loud as compared to the other cards in the past.make sure you have at least a 650W power supply to be sure you are getting enough power to all your parts.lastly,as far as the voltage on the mobo,don't worry,you'll be fine.if it maxes out at that and that is what it is running,then you have nothing to worry about,lol!!

got anymore questions for me,lol?if so man,feel free to ask me anything at anytime.i do this type of stuff for a hobby and my career is in IT.