I'd steer clear of the cordless.
What are you doing with it, trimming branches, cutting firewood, carving statues?
I recently bought one of these from harbor freight to trim 2-3" thick branches and it worked well.

Bit harder to balance at full extension than I thought it would be, but what used to be an all-day job with the hand saw took 15 minutes this year.
It requires, but didn't include bar oil.
They have a regular chainsaw which I assume is the same thing without the pole, but it isn't that much cheaper than the ones you mentioned.
Don't forget the 20% coupon from the Sunday paper.
