I'm famous for researching even mundane choices virtually endlessly.  So, when it was time to replace my vintage monster-size Linhof tripod, I spent months investigating every detail of every tripod & head model manufactured.  The result: a Gitzo-RRS combination that I am confident can't be beat and will outlast any other photographic equipment I own.

Gitzo:  The lightest, sturdiest and sleekest carbon fiber legs on the planet.  After much debate, I settled on the Gitzo GT3532LS.  For those new to the Gitzo numbering system, the first letter is for Gitzo (G), the second letter is for the type of device (T=tripod), the first digit is the series (3), the second digit is the leg material (5=carbon), the third digit is the number of segments (3), the fourth digit is the edition of this model (second version in this case), the L stands for Long, and the S stands for the Systematic series (no center column.)  Other terms that are common include: EX (explorer series), LVL (leveling series), G (geared), T (traveler series), and V (video adapter.)  

I chose the series three as the perfect mix between the too-light series 1 and 2 models, and the too hefty series 4 and 5 models.  The carbon legs were a key motivation for my upgrade due to the added strength and lighter weight.  I chose 3 sections instead of 4 or more for the added stability and quick set-up--these factors were more important to me than a shorter folded length, which is more portable.  I love that the Systematic models are the most stable because they lack a center column.  The advantage of the quick height adjustability of a column is negated by its inherent instability.  Many studies prove that the center column becomes a monopod mounted on a tripod, increasing camera shake.

I worried that I would miss the quick lock release on my Bogen-Manfrotto legs, but now am not looking back.  The screw extensions are easy to master after a few tries (yes, I unscrewed them too far more than once), and feel more secure and easier to control than the latch systems.  I was also concerned that I would be stooping slightly with the standard length GT3532, so opted for the Long version.  While I am only 5'6" tall, I find that the extra few inches of height allows me to stand straight when using the tripod on a slope or stairs.  Conveniently, there are markings on each of the three legs that happen to make the system exactly the height I need it to be when on level ground.  While adding a couple of ounces to my tripod's weight, the option of having the extra height is worth it to me.

RRS:  I hesitated to take a brand named Really Right Stuff seriously until I read review after review gushing about their impeccable quality and workmanship.  I knew that I wanted the strong quick release system like Arca-Swiss has manufactured (the Z1 is reportedly excellent), but I was leery of purchasing third party or generic mounting plates for my camera and long lenses.  It was an added plus that RRS is manufactured in the US, and I became fascinated with the company's history and products as I studied their website for hours.  I considered the smaller BH-40, which is rated to hold most of my gear--but opted for the stronger and larger BH-55 bullhead   I took the gamble, waited a week, and knew the second I held it that this tripod head was a work of art.  The bullhead glides smoothly, the dials easy to use, the balance simple to calibrate, and the mount quick, secure and flawless.  

For portrait orientation

Integrated screwdriver

Screw based leg-lock system with rubber feet attached.  

Level

Metal hook under tripod for hanging weights or camera bag.  Excellent for holding your gear-bag out of the mud and adding extra stability when you are in the middle of a windy sports field in April!

Amazing how low it can go!

The Gitzo GC-3100 padded tripod bag is a perfect fit for the Gitzo 3532LS with the RRS MH-01 bullhead attached (with padded cover that is included with the ballhead )  The bag is described as 32.3" long by 5.5" wide -- a snug but safe fit.  The double zippers make entry easy, the padding is generous, the small pocket inside useful, and the strap adjustable.  I also like that it is simple and professional looking, unlike some flashier competitors.  A newer version of the bag was just released, but it is significantly larger and more expensive.  If you can find the 3100 in stock, you'll find it perfect to carry your valuable gear.  

This Really Right Stuff L84 plate is custom made for Canon's 70-200L IS lens.  I also purchased a custom plate that remains attached at all times to my 5DmarkIII.  

Where to buy:  I turn to B&H for virtually all my photographic needs, and they had the Gitzo legs and bag shipped to me in a day.  Really Right Stuff can only be purchased from RRS itself at it's California offices.  I did call them to discuss my purchases and welcomed their advice and very personal customer service.