Argent Tournament Mounts
Argent Tournament mounts are available from the various quartermasters at the Argent Tournament in Icecrown, Northrend. They are purchased with Champion's Seals, which are earned primarily from daily quests. Some also require additional gold.
You must have earned 'Champion' of a quartermaster's faction before you can purchase their mounts.
Your reputation with a particular faction may decrease the gold cost of some mounts, but not the Champion's Seal cost.