Good PC games form the German/Russian perspective?

Tons for the Russian

Strategy Id recomend the Men of War series if you are looking for a Real Time type game. Also Red Siege Moscow to Berlin is ok, Codname Panzers I & II, Rush for Berlin, as well as the Blitzkrieg Series.  Company of Heroes 2 that is comming out early 2013 will be covering the Russian front.  If you want a more turn based game then id say Combat Mission Barbarossa to Berlin, Korsun Pocket, Close Combet III, and Talonsoft East Front 2

First Person Shooters there are a bunch for the Russians:  Call of Duty 1, Call of Duty United Offensive, Call of Duty World at War, Call of Duty Finest Hour.  There is Red Orchastra, Red Orchastra Heroes of Stalingrad Battlestrike Shadows of Stalingrad and Iron Front.  

There are tons of strategy games from the german perspective like the Company of Heros Series and Men of War series Codename Panzers, Blitzkrieg, ext.

The only two first person shooters that I know of that let you play as the Germans are Iron Front and Heroes of Stalingrad.  Ubersoldier I & II let you play as a german soldier but you are part of a resistance force...other then that Darkest Days and Necrovision Lost Company have levels that let you play as a German in WWI.