portable air conditioners

[besonen]

i need to purchase a portable air conditioner. a 12,000 BTU unit should be just the right size (just a bit larger than i actually need).

i'd like the unit:
- to be well built
- have replaceable parts that i can order
- to be energy efficient


here are a few i'm interested in:

NewAir AC-12000E
http://www.air-n-water.com/product/AC-12000E.htm

Amcor ALD12000E
http://www.amroyal.com/index.php?cmd=product&item=4014

Sunpentown WA-1220M
http://www.amroyal.com/index.php?cmd=product&item=537


one nice thing about the Sunpentown WA-1220M is that replacement parts can be ordered:
http://store.sunpentown.com/paforwamo3.html


does anyone know if there are any cons to self-evaporating units?

any opinions on what i should purchase? any other suggestions in addition to what i've listed here?



thanks,
david