60GB is pretty small for a complete Windows 7 system, therefor my advice would be to create one partition using the full available space.
On Windows all lot of files are always installed onto the partition Windows installed onto and you can't change that in the installer.
If you have already installed Windows on the first partition you delete the second partition. Afterwards you can increase ("extend") the partition size of the first partition.
As you can not extend the system partition that contains the currently running Windows installation you have to boot from Windows 7 install DVD and use the command line tool diskpart.exe:
Use the following commands after starting
select disk 0
Look at the output and make a mental note of the volume number of the system volume/partition. Insert the number in the next command:
select volume <nr>