Floor Jack Recommendation?

Hi All,

I'm looking for a new floor jack to use primarily with my wife's '04
Jeep Grand Cherokee. I had a Craftsman SUV jack until it spewed oil
and collapsed the other day. I need to carry it fairly frequently, so
I need something fairly light, but also tall enough to lift a Jeep in
the air. Any recommendations? I'm thinking of going with the Arcan
Aluminum:

http://www.northerntool.com/webapp/wcs/stores/servlet/product_6970_200345428_200345428

At 19.25", it's the tallest aluminum jack I can find for around $200,
but I'm also considering the Torin 2.5 Ton Aluminum (18.25") and the
Jegs Aluminum (17.75").

What do you all use? What's the minimum height that I should go for?
My old jack goes to 21", but I don't think I've ever had it all the
way up. Most of all, I want a jack that will last a long time. I
couldn't believe it when my Craftsman jack died after only a few
years. Apparently, all of their newer jacks have the same basic
problem. ;-(

Thanks,
Tom