I have been using toyotomi portable ac's for over 5 years and highly recommend them.
Here is a link:
http://www.toyotomiusa.com/products/...rs/TAD-T38J.mv
Keep in mind portable ac's can only cool so much. I can confirm that this model can keep temp's down in the very low 80's during summer in so-cal with a greenair cd12 propane generator also in the room. Total watts in room 4 x 600.
All temperatures were taken with a laser thermometer at the leaf.
Cheers!