I am rapidly moving to the opinion that gearing any toon now past t9 (unless raiding) is not very useful, once Cataclysm comes it will wipe out all that work and the extra iLevel will not make that much of a difference in leveling speed.
Once my current team dings I will just gear them to close to a 5k GS and then do the dailies etc and stock the gold.
Even with this current team I am wary of spending any gold on gearing when I ding 80, due to knowing I can probably gear them over a week or so without spending any gold.