This is pretty much common sense but I thought I'd share. I've been using this tactic to make easy gold for the past few weeks and have found it makes alot of gold with not too much effort.
Firstly, you'll need an enchanter capable of enchanting Crusader.
Now, its time to farm up some old-school Strat, for the Crusader enchant you'll need 2 Righteous Orbs and 4 Large Brilliant Shards.
Righteous Orbs only drop in the Scarlet Quarter of Strat, so, run a quick run of the Scarlet Quarter.
In one run you should be able to get 2 Righteous Orbs and 4 Blue items to disenchant into 4 Large Brilliant Shards.
Note: Archivist Galford has a 100% chance to drop ONE Righteous Orb. He is in the Scarlet Quarter so you should kill him while clearing it, this means you will only need one more from the trash mobs.
Once you have your 4 Large Brilliant Shards and 2 Righteous Orbs then you can buy a cheap Weapon Vellum (I, II or III) and enchant Crusader on it.
Please take into consideration before flamming that this is VERY server dependent, the Crusader scrolls sell for about 350g on my server, this means I can make around 680g/hour as it takes me about 30 minutes per Scarlet Quarter run and Weapon Vellums cost around 10g each on my server.
I hope I helped,
Flash