Good info above. As you can see there are different styles to healing 5 mans. What I do is BoL tank and pretty much heal him to build up shields and heal at same time. I mainly use HS/WoG3hp and HL unless he dips below 75% then I throw out DL. I try and position myself around raid melee so that I can start to keep them up using HR/LoD3hp. I also throw out other healing spells as mentioned above on raid knowing tank will get 75-100% of heal transfer through BoL. I only use FoL during Oh Crap moments. I try and Judge always as close to cd as possible.
HoS- used on tank always off cd to make life in pug easier.
HoSal- used on over aggressive melee/ranged to decrease aggro.
HoP- used to save a caster close to death or just to piss off melee dps if HoSal is not off cd.
AM- I use this to bump up whichever aura I have up. Generally use Devotion and Resist in 5 mans depending on which boss were on. Works great with Concentration in pvp.
GoaK(angry man) according to Kurn-used when tank is taking a ton of damage with DL/HL/WoG3hp. Plus you get a little splash damage onto melee.
AW-used when tank/raid are taking heavy damage. I'll use this in conjunction with DivPlea to get some mana back after people are healed back up.
DF- used to help with heavy raid damage in conjunction with HR.
DP- use it when I am in a position to where I am taking heaving damage. Works great on Fire damage when glyphed.
DS- oh crap bubble(mama)
Also it's very IMPORTANT to know and understand your talents, esp when it comes to certain procs that you have and should take full advantage of.
ABC- Always Be Casting heals on someone.
Now this is what works for me on 5 mans. Raiding is different do to your healing assignment etc...
Another good website is Kurns Corner http://kurn.apotheosis-now.com/
Good luck and have fun finding your style.
Ignore me
). Over time, you'll begin to figure out when not to use them, and ultimately I think that will make you a better player than if you try to take the opposite route. 
