You can change the cursor icon to something more visible. Have a look at this new stickie:
http://forum.cockos.com/showthread.php?t=57630 and the WIKI page:
http://www.cockos.com/wiki/index.php/Themeable_Cursors (by courtesy of Shan and EvilDragon, thanks).
The one in your ani is called "arrange_ibeam".
I attached my custom Ibeam cursor. I just surrounded the original with white pixels, so it stands out. Just extract it into a folder named "cursors" in Reaper's application data directory and restart Reaper. To get rid of it again, just delete it.
There's a complete set of ProTools cursors for Reaper floating around as well, btw.