Mac OS X 10.4.5 Special Report: Trackpad cursor getting "stuck"
Mac OS X 10.4.5 (#11): (Intel-specific) Screen distortion; Cursor getting "stuck"; More printer problems, fixes
Mac OS X 10.3.5 (#9): Two more freeze culprits; HP printing and multiple users; Safari cursor disappearing; more
Assorted Mac OS X 10.0.4 issues: Volumes won't mount; More disappearing cursor fixes
Mac OS X 10.0.4 follow-ups: Kill Dock; Puff of smoke; Disappearing cursor work-arounds
Adjusting the mouse pointer size could be a quick way to prevent it from getting lost.
If your mouse cursor disappears or freezes but the system is still responsive, then you can likely remedy the situation without hard-resetting your Mac.
If you are tired of holding the arrow keys and waiting for your cursor to move, there are alternatives to greatly speed this up.
In true Ginsu fashion, it's an air mouse, a remote control, a handheld keyboard, and possibly a juicer.
We just finished reviewing Samsung's latest Smart TV, and it wasn't the picture quality, the style or even the comprehensive app suite that impressed us most. It was the awesome remote. Find out why.