This might be the ideal buggy

I saw this item being used as a handicap chair and it quite impressed. About the best I've seen so far. Very expensive but built about as strong as a car trailer. As one can purchase just the base and fit it out yourself should be able to get the CofG down. Rear wheels about 12" front (?)8"

http://www.tumbleforms.com/smaladcarrov3.html

http://www.tumbleforms.com/carrierovers.html

An other view. ---- http://www.fasequipment.com/catalogue/seating/s6.htm

An other idea. ---- http://www.healthcare.ottobock.com/

You're kidding, right? If you're carrying so much crap that you need a wheeled device that large to get it around, it's time to rethink your kit.

I've just seen this. Too dear to buy but it gives an idea to try and make one. Looks simple but probably isn't.

http://www.spokesnmotion.com/products_shop/product_detail.asp?product_id=1083

Mr Gordon,
it must be born in mind that some people using large format gear suffer from vertebrae diseases, and for us, carrying 15 to 25 kg of photo gear is a real pain.
There is no need to rethink the kit, as a LF camera, 4 to 6 lenses, Pola, sheet-film holders... and a large tripod are really heavy. It is a constraint of the job of large-format photographer, and one cannot go against that.
Even the weight of the backpack by itself is already heavy.
I use a baby stroller with 3 wheels and inflatable tires, and with a Lowepro Super-Trekker fixed on it.
It can also carry a large tripod.
As I have 2 prothesis of hip, it's a great improvement for me. Otherwise, I would have to stop LF photography and to buy a pair of Leicas.
The main drawback of these rolling chairs is that they don't have any brake. On another hand, a tricycle seems more convenient than a four-wheels buggy, to operate in the streets and on the pavements for example. It's cheaper too.
I've already answered to such a question, and if you want to see the solution I've found, have a look to the photo of my project of "photo stroller".
Greetings.

I posted an address but I didn't test it.

http://www.healthcare.ottobock.com

Click on Wheelchairs for active use. Under rehab and care at bottom of page. Click on wheelchairs for children at top of page. Should open up to a sort of barrow 'miny'

Just an other idea, should be light.

I think your jogging stroller is your best bet. At the school I teach at there are two children in these and they are extremely awkward off the pavement, and I would say unsafe, and forget about sand. If the stroller is not doing what you need try this

http://www.radioflyer.com/atw/atw_29.html

I haul my son all over in it and it rides real smooth in all but the rockyest conditions.

here is another product (more affordable)....

http://www.walmart.com/catalog/search-ng.gsp?search_constraint=0&search_query=rollators&Continue.x=13&Continue.y=14

(or www.walmart.com and make a search on rollators)

At one point I considered one of Cabela's collapsible game carts. They are made to haul deer out of the woods so hold a heavy weight. Also they have big wheels which is an advantage going over rough terrain. see

http://www.cabelas.com/cabelas/en/templates/product/standard-item.jhtml?id=0020698225958a&navAction=jump&navCount=2&indexId=cat20778&podId=0020698&catalogCode=QP&parentId=cat20778&parentType=index&rid=&cmCat=MainCatcat20712&_DARGS=%2Fcabelas%2Fen%2Fcommon%2Fcatalog%2Fitem-link.jhtml.2_A&_DAV=http%3A%2F%2Fa1460.g.akamai.net%2Ff%2F1460%2F1339%2F6h%2Fwww.cabelas.com%2Fcabelas%2Fen%2Fcontent%2FPod%2F02%2F06%2F98%2Fp020698ii01.jpg&hasJS=true

It may be better to go to cabela's site and search.... They have several different models and aren't too expensive.

Jerry

After all experiments I've done for carrying a field camera and all carts I've tested, I think that it is more reasonable not to consider buying a two-wheels cart, for three reasons :

1°) They must be drawn and not pushed. So they rock very often and the bag is likely to fall on the ground. Most carts are conceived to roll on flat and hard grounds like railways stations or airports halls. The wheels are often small ones, and are not adapted to all-ground.

2°) When drawing the cart, the position of the body is not correct as the spinal column is twisted. Pushing a cart is a more natural position.

3°) When you stop, most carts don't have a "third leg" to leave the cart upright. So one must leave the carriage on the ground and must bend down to take what's needed in the bag.

On another side, a three wheels cart (in my case a stroller) always stays upright, and you can push it in front of you. When you stop walking, the cart/stroller remains in the same position and the bag is fixed higher on the cart, (and at about 45°), so you can pick easily what you need in it.

The stroller can be folded in a very small volume, wheels are dismounted without tools and the whole unit easily enters in a car trunk.
The stroller is lighter than these big and cumbersome carts.