C: drive running out of space

Hi all,

I just came in to a client running SBS2003 Premium with all the bells and whistles.

The system was poorly managed and I found that they have a raid-5 disk (4 disks) totallying around 100GB.

Turns out that the disk was partitioned into a C and D drive with the C getting 12GB and D getting the rest.

I checked the storage and found that C has about 700MB left. I moved as much as I could onto D, but was wondering what my options are to increase the C size without major reconfiguration. Is there a way to extend C?

thanks

Nate