well, i did some messing around with gems and stuff on simcraft, and the best setup i found was 24%crit 30%haste and the rest in agil. do you know if the attack speed meta is worth trying on a cat?
head=duplicitous_guise,id=34244,gems=relentless_earthstorm_12agi_2crit
neck=hard_khorium_choker,id=34358,gems=10agi_2ap,enchant=mark_of_the_hidden_satyr
shoulders=demontooth_shoulderpads,id=34392,gems=24crit_24crit_3agi,enchant=6ap_6crit
back=cloak_of_unforgivable_sin,id=34241,gems=10agi_2ap,enchant=gift_of_haste
chest=harness_of_carnal_instinct,id=34211,gems=10agi_10agi_10agi_4agi,enchant=peerless_stats
tabard=purple_trophy_tabard_of_the_illidari,id=31405
wrists=thunderheart_wristguards,id=34444,gems=10agi_3sta,enchant=12ap
hands=gloves_of_immortal_dusk,id=34370,gems=10agi_3crit,enchant=10all_15agi
waist=don_alejandros_money_belt,id=30879,gems=10agi_5agi_10haste_10agi_4sta
legs=leggings_of_the_immortal_night,id=34188,gems=10agi_10agi_10agi_4agi,enchant=15agi_9crit
feet=shadowmasters_boots,id=32366,gems=20haste_20haste_3crit,enchant=8agi
finger1=band_of_the_eternal_champion,id=29301,enchant=32haste
finger2=band_of_ruinous_delight,id=34189,enchant=32haste
trinket1=gnomish_lightning_generator,id=41121
trinket2=blackened_naaru_sliver,id=34427
main_hand=stanchion_of_primal_instinct,id=34198,enchant=45agi