I can't tell you much about the Nissan or the Eclipse or how they compare to a Crossfire, but a 60k mile Xfire for under 10K sounds like a good deal if it's been taken care of. I like the look of the other two, but you won't see a Crossfire everyday like you will with the others. Also, it's worth traveling a bit for the SRT6 and you can probably pick one up for around 12K if it has around 80K on the clock.

RL