Hi rak_007 firstly congrats on the Purchase

,so u finally got the L300 ,good one mate and about taking out vista 64 bit and installing XP ,no mate i wouldn’t recommend you that ,let vista be there and I tried installing XP had many issues so left it with Vista 64 bit
and talking about resizing the partitions you can do it with the Recovery disk you got from Toshiba ,just boot from the disk i.e. by hitting C ( not sure ) and then reinstalling the OS ,while you are about to reinstall the OS you will get an option to resize the HDD ,go ahead and give 20GB as C drive ,let the OS install ,later go to disk management format the rest of the space ,I did have some difficulty doing it so I went ahead booted from a regular XP /Vista disk formatted the whole HDD then inserted the Recovery disk and gave the “C” drive size as 20GB and installed the OS and later I went to disk management and formatted the other Drive.
And when are u starting a GO