For those of you who want to do storage planning in DPM 2010, you can get it from
Exchange
http://download.microsoft.com/download/8/5/1/851E02E6-4CCA-4846-83C5-3C92C8114899/DPM_2010_Storage_Calculator_for_Exchange_2010.xlsx
Hyper-V
http://download.microsoft.com/download/8/5/1/851E02E6-4CCA-4846-83C5-3C92C8114899/DPM_2010_Storage_Calculator_for_Hyper-V.xlsx
SharePoint
http://download.microsoft.com/download/8/5/1/851E02E6-4CCA-4846-83C5-3C92C8114899/DPM_2010_Storage_Calculator_for_SharePoint.xlsx
Enjoy!