I picked up these Pegasus 1/72nd SU-152's at Modelzone at half price (£2.99 for a box of two vehicles) a few weeks back. The kits are very nice with only 32 pieces to each vehicle and very easy to assemble. The tracks are moulded on and are simplified but still far superior to Italeri's fast assembly kits.
I painted them today and I'm very pleased with them. The crewman is an old Esci KV-1 chappie that has laid around for years ( I knew that I'd kept him for some reason).
What a fine looking and effective vehicle the SU-152 was, the Russkies certainly knew how to build tanks and how to make the best of obsolete models.