Hi
Sorry I don’t have many ideas on price comparisons. I bought my D3100 in the camera centre on grafton street. Very helpful and threw in a few extras. They were actually cheaper than Argos.
There is an afternoon course that Nikon run (camera centre threw in for free), its brilliant if you are new to this.
Good luck with the camera – fantastic long term investment.
This guy is apparently the ‘guru’ of cameras….. he’s not one of these recommending €2,000 cameras to the general user. I found his site brilliant to get a handle on DSLR’s ….
http://www.kenrockwell.com/