If you are the intrepid shooter of lots of films and videos on your travels, then you must have a powerful optical zoom camera like a canon sx50 (which has a 50x optical zoom) or a nikon coolpix 510 (42x optical zoom). They are less bulky than the DSLR cameras and the zoom capacity lets you view and shoot objects and pretty girls from far away. Also have the new large capacity SDXC cards, which are better than the regular SDHC cards which can hold only up to 32 gigabytes of memory as compared to the SDXC cards which now have up to 256 Gigabytes of memories. perfect for shooting full hd videos and taking pictures at the same time as the new cameras like the canon sx50 and olympus sz-31 MR can do.
also bring the new USB powerbank storage device (preferably the 8,400 mAH up to 10,000 mAH variety so that you can do multiple recharges on camera battery before recharging your USB powerbank), which can easily recharge your camera battery plus smart phone and tablet devices.
In addition to the advice you get from VT, I recommend purchasing the Rough Guide to Jordan by Matthew Teller It is full of informative advice and extremely helpful.
In summer, Amman isn't so hot but short sleeves is better for visting. Shorts are also welcome, but most Jordanians wear long pants in the city.Sun glasses is also required if you don't want your eyes to be uncomfortable.
Toiletries and Medical Supplies: Sun tan lotion is required. The sun there is very sunny. It's not only for your beautiness, it's also for your health.
Photo Equipment: It's okay to have a normal digital camera with you.
Miscellaneous: CASH...Jordanians don't like to accept credit cards. So I STRONGLY recommend to have enough cash with you. And of course, you can withdraw from any ATM in the city, but International withdrawal cost around US2.3+. I think Jordan it's safe to carry some money with you in the street.
Second time I visit a country with a "Guide du Routard"!! Unfortunately as you have now guessed this is only in French...
It cost 15E, not so cheap for a book without any pictures but it is definitely worth every cent!! You don't buy a book, you buy the content...
Traditional guidebooks, will mostly present the country at an historical perspective, highlighting the different attractions to do or to see. This is still the case with the Routard but it is as well suggesting hotels, restaurants, pub, explain local customs with plenty of practical details.
Yet this book was a pain for the local people I was working with. Most of the time, when they were trying to explain me something, I could often answer "yeah I know, I read it in my book" ;-)
I'm still puzzled, I don't know how the Routard's team manage to be so much up to the point. The recommended places were always where locals would bring us in.
If you are french-speaking, no excuse, this is an absolute must-have!!