player targets -> PerfectTargets (available at svn.wowace.com/files)
About Squishy, I don't know why you want to ditch an intelligent addon, I mean why would you want to accidently want to heal someone who is out of range. Do you like your UI error FuBar_CorkFu can be used for healing buffing and debuffing, or something simpler: Perfectraid with sort by health option turned on.