i have a canon 60d with kit 18-135, love it, enjoy it, BUT before i invest in flash and FAST lenses ( like a 50mm 1.4(maybe 1.2) and a sexy 70-200 2., will the 'digic 5' be better with the low light iso, and worth wait time, or will thenikon line up,(like the new 5100 that comes with the sexy sensor of the d7000) be the answer
I have the 50mm f/1.4 and the sexy 70-200mm f/2.8 mk II. I also kept the 18-135mm kit lens which I find useful at times. However the CA on the kit lens is really bad, one has to pretty much fix every photo taken with it. On the other hand, once you know what to look for and how to correct it, the 18-135mm span is great.
With regards to the future inquiries....I don't know. I say go with what works for you at the moment and worry about the rest when / if they're available.
Getting a flash and and fast lens now will see you ready for the next great thing from Canon. (or did you mean flash lenses?)