These are questions we all face as photographers. The simple answer to which one should I buy; the best you can afford. A good quality tripod should be easy to use, versatile and last you for years. Top brands like Really Right Stuff and Gitzo are no brainers IF you can spend that much. Others like Endura offer good value. Brian Tramontana and I talk about this and a host of other issues on the subject of tripods. Check it out here.
Or, you can click on the Tripod Podcast in the right hand column. You can always find all the podcasts at Hold the Eye Images on iTunes under podcasts.