Accessories itself going to cost a bomb. My personal experience:
Extra SD Card: $60
Extra Battery: $35
New Dry Cabinet: $190
Hood: $20
Sirui Tripod: $210
Screen Protector: $10
Camera bag Crumpler: $160
Camera bag KATA: $100
AA batteries for flash: $10
SD card reader: Free!
And much more stuff I haven't got the guts to buy yet...
1) Not necessary to spend so much on a spare SD card. But of course it's up to individual preference.
2) Not really necessary to get spare battery unless camera is heavily used every single outing. Number of shots per charge is pretty impressive. Again, personal preference.
3) Dry cabinet... yeah ok
4) Don't most lenses come with the hood free?
5) Can just use the freebie bag first instead of buying a Crumpler AND a Kata bag :sweat:
6) Buying AA batteries for flash is good idea... IF there is an external flash in the first place