no to the pickups because I think that it is so dumb to buy a fast pick up truck. I would rather have something fast that you can turn in too (had with a tall truck) also, it is the reason why I hate or starting to hate ford and a few other companys (porsche) because instead of putting there engineering skills towards good, reliable, inovative, and maybe fast cars, they are putting their effort towards SUV's and Pickups.
I would say yes on the skyline (one of my favorite cars of all time) but good luck on talking your dad into buying you one (also the r34 is alot nicer).
to the 03 cobra. The power is impressive but I hate the styling
on the 05 mustang, The styling is sweet, rwd=lots of fun, power=yum. However, I only like the hard top. Also I would wait for the 06 because that is when the svt edition is going to come.
on the supra however, prepare to spend a shit load on that think. Supra=big honda which=fun in stock form, funner in moded form which=big ass money pit.
I ended up click the 05 stang just because it is new, fast, and cool looking.