Ok, So from everyone's screenshots, I've noticed nobody uses .gif crosshairs. I found a really cool crosshair in a crosshair pack awhile back, it is a color changing dot.
the crosshair pack is available here: http://www.accesswave.ca/~seburges/
under the Files section on the left, It's Called RainBowz
and the color changing dot is in there. It has made a huge difference for me in such maps as W00tabulous (the yellow-floor version) and anything with bright textures.
Couldn't find a topic to put this in, if someone else does, feel free to move it.
Hope it Helps!