Jason,

I'm heard Komatsu has shut down production in the US and moved it all back to Japan. Also, there's a rumor they're dropping the forklift division and going back to only earth moving vehicles. I personally wouldn't go down that rode. I just worked with a guy who has 6 4000# Komatsus in a warehouse application and he hates them. The company wants to break the lease 2 years early to get rid of them asap.
How many hours a day are you using it? If little, I recommend a used 5000#. 5000 are dime a dozen and a little cheaper used. I personally am partial to CATs, but like ed said, everyone will tell you there's is the best. Definitely get LP is you are going outside!