However: I personally definitely prefer the Human racials over dwarf, since only 2x Priests in the raid have to be dwarf in order to negate fear effects on the MT & 10% Reputation gain on a purely selfish level is almost too good to pass up on because of the various rep grinds that happen during a raid cycle. The 5 % bonus spirit is nice to have as well.
Aux delivers a more advanced UI for the auction house. At times you want to buy a lot of materials and you want to buy for the lowest price possible. Aux let you list an item ordered by the price per item. Another neat function is that Aux can post multiple stack for you on the auction house. If you use the default action UI you have to post each stack manually.