I handle most of my non-Game non-Linux apps (which are few) through a Windows 7 Pro VM inside Linux, which has a plain black desktop. For games I have a dedicated Windows 7 Pro dual boot, which uses my old custom made Civilization wallpaper, which I have posted here before, but I guess adding it here won't hurt:
13.1 with KDE. I like XFCE as well but use a few of the KDE apps so thought "hey why not". Once I have it all configured how I like it, they are within a couple hundred megs of each other anyway. Yeah SUSE is pretty solid and BTRFS Snapshots are nice. I run Arch on my laptop with the same setup.