I like 'vettes. I'd love to own a classy C2 bigblock.
I have to say that the C4's are probably my least favorite generation, though I don't dislike them or anything. I drove one a few years back, and it felt nowhere near as quick as my WRX (unfair comparison, my WRX was quite modded at the time), and really didn't feel that nimble to me. Also, the squeaks and rattles were quite quite pronounced, but then it was a 10 year old car. I did enjoy the V8 rumble.
I think that a C5 is a great buy. They're getting to where you can get a nice one with low mileage for what, low-mid $20's? And that's a car that's 90% of what the C6 is.