i have a skyline for sale.. mint condition, just a minor scratch on the rear bumper.
in all seriousness though, i took a bit of a leap to get my car, and i spent almost all my money on it for a year or two.
admittedly not the best idea, but i loved driving it, even the 5 minute drive from balcatta to ossy park in the mornings was fun.
have a look around, i've just been reading through the autotrader for a new car, and there are some nice skylines for under 20k, hell you could get a really nice S1 with a body kit, suspension, few mods for under $20k (i was going to sell mine for $18k).
i was after a S2 aswell when i bought mine, but at the time they were $35k+, so i 'settled' for a nice stockish S1 with a body kit.. and ended up spending over $35k by the end of it anyway