Hey Glowpipe.
Your raid DPS is a bit below the optimal requirement for the fight. The first time we killed Elegon we had 2 players above 100k DPS(SV hunter(me) and Frost DK), even though gotta keep in mind that DPS increases as Elegon's "Damage Taken" debuff stacks up. Therefore I believe your DPS either needs to step up or needs a bit of gear. We usually run with 2 melee(Frost DK and Cat Druid) and 4 Ranged(SV hunter, Fire Mage, Affliction Warlock, Shadow Priest) and 2 healers(Holy Paladin, Resto Shaman). Our Melee Only reset their debuffs by running out of the platform when an add is about to explode. Other than that, add DPS is completely a ranged task.
We nuke the first add right away. On the second add we bring the boss down to 85% and THEN kill it. We also ignore the 5'th spark, staying on boss. I made a video, perhaps it could help.
http://www.youtube.com/watch?v=2khymW_kf1Y