Here is my setup, i use this on my shaman, priest and druid (I'm a glutton for punishment i think for playing healers)
of the top of my head im using...
ag_unitframes - very nice, has a few bugs but its useable
clique - my favorite click casting mod ever, i love hostile clicking moonfire spam :P
onebag - just keeps getting better
squishy - i dont know how i lived without an emergency monitor before this
perfect raid - now if only i could figure out how to add those numbers to the side like i see in everyone elses screenies...
fubar2 - can't live without my fubar hehe
mountme - very useful as a druid so i can get into travel form fast
bongos - love these action bars, reminds me a lot of bibtoolbars
druidbar - can't live without this
smart assist - nothing much to say for this, helps me assist people :P
satrina buff frames - nice and compact buff frames
my setup isnt very special but it works hehe, keeps every unit frame within reach for healing
Which scrolling text addon are you using? Specifically I want to know how you have damage in/out on separate sides, buffs/debuffs on top, and how you have Blade Flurry hits listed like that (the BF listed as [2 Hits] confuses me, is that a Sinister Strike perhaps?).
SCT Has this option i think, set the display style to 'rainbow'.
Even if its not 100% like Haste's its very pretty and similiar :)