There are no graphics cards that don't fit inside the 400R, so that's irrelevant.
Excellent brand? I'd go for EVGA. The ACX cooler is fairly quiet, not the best but it's decent enough. Either go for the ACX SC or ACX FTW, the SC will probably be cheaper by enough of a margin that the FTW isn't worth it but, you didn't mention where you're buying from so I can't check for you.
MSI, Asus, and Gigabyte are fine choices too, all offering 3 year warranty. Avoid Zotac which only offers 2 years. Asus don't seem to overclock that well based on what I've seen and they lack cooling on the VRMs (someone prove me wrong), I'd probably pick Gigabyte (Rev 2.0) if EVGA wasn't available or as good of a deal.