I used this method to get my mount... and it works fine...
First.. depending on your level.. get the flypoint in Winterspring.. and when you are in need of money, fly there.
In Winterspring is a General goods vendor.. who often sells some rare Lw, Engineering, Enchanting recipes. And there is a Engineering trainer + salesman a bit from the general goods vendor.
i Spent around 5g buying the recipes. And went to orgrimmar and tryied to sell.. ended up with 1 recipe left.. and 15g in my pocket
Maybe many of you think its a slow way becouse you got a 60 to farm with.. well.. i dont
Hope it was usefull!