Singh-ray diffuser? I had google for what those are. Some extra-fuzzy filter or summat.
Cable release? Do you need a remote, and are you going to need bulb mode for really long exposures?
Ball head tripod without a centre column? Are you going to be taking extra long exposures, or using this to hold some mad scientist's death ray extra stable?
Other than a bag and maybe a cheap tripod, most of that is just fluff. Pup and I differ on whether a UV or clear filter is worth having to protect the front element of a lens. He says "nay" while I say "yea" on that one. In my defence, I do have a 9 month-old who seems to instinctively want to reach for the lens of any camera pointed in her general direction, and it's a lot easier to clean drooly finger marks off a filter than a lens.
You didn't happen to get that list from a camera shop, did you?
OK, so maybe that's a little unfair. Tripods definitely have their uses, but unless you have some requirements that are really out there, spending more than about $30 on one is probably a waste of money. I bought a pretty sturdy Sunpak to use for big (and small) family photos and because I want to try to take a time-lapse sequence of my daughter as she squirms around in her cot while she sleeps.
Similarly, a remote has its uses. I like Nikon's itty bitty ML-L3 infrared remote:
http://www.nikonusa.com/template.ph...30&cat=1&grp=56
It's not fancy (you push the button and the shutter fires), but it does the job for taking family shots with the camera on said tripod. It's also cheap as chips ($15 or so) and it's tiny (smaller than my thumb).
You probably don't need a cable shutter release unless you're going to get into really long-exposure photography, with the camera set in bulb mode.
As to where to buy from, I reckon you couldn't go far wrong with
B&H. I recently bought a D80 plus a pile of stuff from them, and couldn't have been happy about the way they handled my order.
Don't just take my word for it, though - check out their writeups and score on Reseller Ratings:
http://www.resellerratings.com/stor...Video_Pro_Audio
Up until recently I would also have suggested Amazon.com, but given they tried to screw me over on part of my last order and the subsequent refund (it's a long story), they're pretty much dead to me unless I have no other reasonable option.
Oh, and finally, it's worth stating that the going rate for a D40X is significantly less than $1000. B&H is asking $700 for one iwth the 18-55mm kit lens. Even with a pile of junk in your shopping bag, you should easily be able to keep the total down to less than a grand shipped.