Wow, you are a lurker! Been on here almost three years and this is your first post! Guess I'll skip my "welcome to NICO" bit.
They will fit your car and you will need to trim the dust shields. I recommend getting a caliper rebuild kit and making everything as close to new as possible before mounting up to your car. If you've got the funds and the patience you might even consider getting them re-powdercoated. There is a great How-To on rebuilding a Brembo gold over on NASIOC, you can find it
here.
You'll need different lines for the Brembo calipers than the ones that you currently have, if it were me I'd just go ahead and get some new steel braided lines for all calipers. If you already have steel lines you might just want to contact whoever made your brake lines and see if you can get banjo bolts for the lines to work with the Brembo calipers.
You will also need new caliper bolts (4) for the rear calipers, the Nissan part number is 08041-2351A.
Have you already got some new rotors and pads picked out? What are you planning on using?