Yep!
Head to this page to look at some good ones (X11 Mouse Pointer Themes)
*www.gnome-look.org/index.php?xsortmode=down&page=0
Download your choice and extract the folder. Then move it to the .icon folder of your Home directory.
Code:
mv <directory name> .icons/
Now go to System > Preferences > Mouse and go to the Pointers tab to see them there ..
Fear not, there's a GUI way too. Go to your home folder and hit
Ctrl + H to show hidden files. Now enter
.icons folder and
extract the required theme directly there itself and then follow the
Sys > Pref > Mouse to change it.