looks like you have some good stuff to install.
how much did you get your AEM box, 5bar and IAT for, shipped? please tell me it was ~$1550 to your door.
also, double check and let us know what version aem you have. there have been reports with the chipsets in the pre-1.11 boxes that burn out and just shut down... and AEM reps are being jerks about warranteeing the boxes out. Wes w/ the copper mkiv is going thru this right now. make sure you have at least a v1.11 or later.
i recommend getting the FJO wideband setup w/ the NTK sensor, not the bosch. you pay like $130 extra for the NTK but the sensor will last for YEARS and YEARS w/ race gas use instead of the 3 months that the bosch sensors last. pay a little extra now up front or pay a little bit repeatedly every time you run race gas. also, if youre not going to use an external EBC, try to pick up a Perrin boost solenoid, those are pretty good units. they are primarily sold for Subaru's.
ive setup the box for the MKIV on my friend's car, it takes alot of fiddling around, even with the wizards and such. but once you get some time with it, youll get the hang of it. i havent worked on one in about 4 months now... and i keep telling my friend to get the cable so i can finish the map on his car. Ive got everything else setup, the O2, start up tables, cold idle maps, o2 calibrations, IAC stepper duty cycle, start timing and injector crank cycle maps, accel throttle enrichment, 2 step, soft touch rev limiter and probably several other thigns that i can think of off the top of my head. i cant WAIT to get my box... ill spend more time on the lap top in my car than in the living room surfing the net!