http://www.youtube.com/watch?v=hiR20xe_P5c

Check that out.
Beast Heard (2x old beast herd about 30+ odd models) 30$
Centigors 30$
Blood Letters 30$
Dwarfs 5$ each
Sicarius 50$
tyranids - $40
Imperial Guard - 50$
Rhino - 40$ (razorback +30, predator +40. mostly for cost of parts)