Which S5 model?

[sleepersix]

I am currently looking to change out of my 80k mile A5 3.0 TDI Quattro Sport for an S5 Coupe. I have been generally looking at 2010-2011 4.2 V8s with manual gearbox (don't want the slushbox auto), but have an offer of a 2011 3.0 V6T with S-tronic.

Trouble is, I'm not sure which to go for.I like the idea of the NA V8 and manual, and aren't too bothered by the fuel cost, but have read lots of good things about the V6T, usually when in an S4. The 3.0 TDI has been a great workhorse, but I miss the noise and response of a decent petrol engine.

Does anyone have experience of either or both?

[sleepersix]

Thanks for all of the responses. The concensus seems to be the 3.0 V6T being the better bet.

I was only focussing on the S5 coupe, with either engine, but could consider the sportback which would pull a few more vehicles with the 3.0 into my price bracket. The sportback seems quite similar to the coupe, although the technical stats suggest the performance is blunted slightly by extra weight. Is this the case, or am I just reading too much into the figures? (0-60 in 4.9 for the S5 coupe - 5.6 for the sportback, both V6T with S-tronic)

[sleepersix]

Thanks for all the advice folks! The concensus seems to be that the 3.0 V6T is the way forward.
Nevertheless I collect my S5 4.2 V8 tomorrow afternoon!

Getting quite excited now!