After ten years of doing 3D, my eyes are just not what they used to be. Is there any way to make the darn cursors bigger and/or more contrasty? The “Large Cursors” option just doesn’t do enough, I’m afraid, particularly the near-invisible selection cursor. Is there a script out there or something?
If you’re on windoze you can choose Magnified or one of the other options from Pointers in the Mouse settings in Control Panel.
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Isn’t it possible to change the cursor’s color in the User preferences screen?
Not sure, though.
Dunno about changing cursor color in Prefs. If it’s there, I couldn’t find it. Anyway, the “magnify” option in Windows makes it a bunch easier. Thanks! I would have tried it earlier except I was convinced Blender’s settings would override it…Preemptively stupid, that’s me.
I changed the background color to a darker gray, that helped alot.
Here is a nice little open source app. Lots of features. If you use it in dynamic mode you can
click through the magnified area. Hope this helps. 
edit
Heh, I upgraded to the latest version and the dynamic mode was greyed out…Went back to v 2.34.