I don't use Healbot (another happy-with-the-new-default-raidframes-healer here) but if what you do is just hover over the player frame, and not actually click on it and select (so that it becomes your target) then you are mouseing over.

I use mouseover healing, and do have trouble moving, so I understand what Dawn is talking about. My main is a boomkin so I changed to mouse moving when I found out that keyboard turning was considered terribad. Doesn't work so well for healing as caster dps, I can tell you that, lol. I am afraid to change to Clique because I will never remember all the combinations...and yes as disc priest (my main healer) and resto druid (heal if I have to on the aforementioned boomkin) I use ALL my spells. I guess keyboard moving will come with practice...

Thanks for the clarification. Funnily enough, movement is no issue for me, or rather, it only was when I crammed my heal frames below my character on the bottom of the screen. That's when I suddenly found myself standing in fire, not dodging enough of Cho'galls corruption abilities etc. I moved them (back) to the left of my character, and now I don't have a problem anymore.

I suppose it really is a matter of individual preference, there's no one way of doing this "right"!