After clearing the current temp folder, you could also relocate your 'user' temp folder by renaming 'Temp' to something else, then create a new folder someplace off your SSD (eg, D:\Temp) and finally, running these commands in a command prompt:
Code:
cd /d %LocalAppData%
mklink /d Temp D:\Temp
Untested; this will create a directory (mklink /d) Symbolic Link, a shortcut if you will, that basically tells the file system 'go to D:\Temp for anything accessing %LocalAppData%\Temp'.
Edit: Heh, someone beat me to it with the less hackish way to move %temp%