I would go with the E92 335 with a Procede, even though I've never modified a car before. There just doesn't seem to be enough of a difference between the 335 and M3 to justify a 15 to 20K increase from TT to V8. And that would be before modifying the 335.
Also, I'll personally need a car next July, and if M-DCT isn't ready by then, I'll lease a 335 for 2 years, go Procede, and then consider a new M when the autoish tranny is ready.
Now:'05 G35 6MT\Laser Red\Beige\Sport\Premium
06/2008: M3, 335+Dinan, or ...