Well, I'm putting down my Tamiya R34 Skyline to begin on this model. I got it in from HobbyLink just the other day along with some O-Z Racing NOVA's that I will be modifying to look like Konig Toxxin's.
The O-Z Racing NOVA's:

Here are the Toxxin's:
Most of the modifications on this kit will be color-based, not much structural. I will be shaving off the license plate holder on the front of the model (I HATE those things!)

It will be painted TS-08 Italian Red and will have a carbon fiber hood (decal). I might do altezza's for the taillights, but I don't know. I'm also going make this car LHD so it will be like an Acura Integra Type R that has been modified to look like the Honda JDM version. I might modify the front end to make some of the vents into actual vents. I don't know for certain, it depends on how I feel.
I've gotten the kit out of the box and their bags and have begun inspecting it. It seems to be typical Fujimi quality. No really noticable flash, no badly molded parts or missing peices. Tomorrow or Monday, I'll "fix" the license plate holder and maybe the grill. After that, I'll sand and wash and then surprise, surprise *PRIMER!* I'm excited about this kit and it loks to be fairly solid.
It seems once you start modifying kits and changing them to be like you want them to be, you can't stop!