The Plastic Soldier Company has released box sets of 1/72, 15mm, and 28mm WWII troops and vehicles.

57 WWII 28mm Russian Infantry

130 WWII 15mm Russian Infantry
130 WWII 15mm German Infantry
5 15mm Panzer IV's
5 15mm T-34's

And a bunch of 1/72 scale German, Russian, and British infantry and vehicles.

The prices look pretty good too.
http://theplasticsoldiercompany.co.uk