the k62 is a sweet case by lancool a subsidiary of lian li, the red version of it is quite nice as is the tool less design, I personally was gonna go for that case until i decided on the Lian-Li aluminum of course pc-a70f which is
here at newegg.com.
I really have no knowledge of the raven 02 but the reviews of the corsair 600t are spectacular all around corsair has put much thought into those cases. One thing I do know about the raven that ive read about is since the i/o panel is essentially on the top of the machine it makes it a hassle to have to remove the top and plug any additional components in to mobo. If i was not getting the a70f i would have more than likely gone with the k62 red edition i loved everything about the case and the red interior was just a plus although one negative is that it is steel and not aluminum but thats just a personal preference