You could go ahead and move your pagefile to a secondary HDD, that should open up 8GB if you have 8GB of RAM, or 16GB for 16GB of RAM, etc etc. Also, disable hibernate.
From:
http://www.sevenforums.com/tutorials...e-disable.html
2. To Disable Hibernate
NOTE: This step will disable hibernation, delete the hiberfil.sys file, and remove the Allow hybrid sleep and Hibernate after Power Options under Sleep.
1. Open a Elevated Command Prompt.
2. In the elevated command prompt, type powercfg -h off and press Enter. (see screenshot below)
3. Close the elevated command prompt.
http://windows7themes.net/how-to-del...windows-7.html
Follow ^this^ link's steps for getting into pagefile management, however instead of step 10, check "System managed size" and select one of your secondary HDDs in the box above, then hit Set. You will likely need to restart, do so.
These two things combined on an 8GB system should open up about 16GB of space on your SSD.