Also you can use HD Loader to format the drive over 137GB as long as the one you are using is 48bit patched version which .7 and .8 are.
Also by using WinHiip to format and install games before HD Loader is used won't allow the first games that you install to have the proper name for the partition they will default to the disc ID number PP.HDL.SCUS_31242 instead of the more natural PP.HDL.Chucky_Cheese's_Revenge.
I quite using DMS once uLE got the HDD Manager coded into it. But if you wish to use HDL format with HDL or at least run HDL before installing games.
NOTE: Some Homebrew apps will not read above 137GB so make sure to set aside some space in the lower drive for these files to use.
PS3 Slim 320GB
PS2 v11 exploit w/300GB Maxtor
PS2 v10 exploit w/80GB Samsung - Network Games
PS2 v10 exploit w/60GB Samsung - Network Games
PSP 1001 3.52M33 w/10GB total storage
NDS DSReal 4GB