I picked up the Sirui N2204 (http://www.sirui-photo.com/EN/frm_ProductSeries_En.aspx?SeriesID=14
) on eBay a few months ago and love it. While the max height (not counting the center column) is 55", my ball head adds on another few inches and makes it very easy to use even with my 5'11" height. I would have gone taller, but I travel frequently and I didn't have room for a longer tripod, nor did I want one with 5 section legs.
Regardless, I've found this tripod to be incredibly sturdy and well made. It ran me about $425 (after shipping, with their K20X head) and I have zero regrets. It comes with all of the features I wanted and a 6 year warranty as well.