Thanks. Yep, the lack of grain is tempting.
I like grain in my black and white. Not so much in colour. Coming from a graphics backround, I'm quite a devotee of the 'garbage in, garbage out' school of thought. If Portra is really going to capture more of range and subtlety of colours, then I have more to work with later.
As for lenses. I'm currently using an OM1n with a couple of 50mm, a 35mm and looking at getting a 28mm. Can't really afford some of the f2 primes, which I'd really like. But my view is that I don't use analogue for sharpness. My digital setup is generally going to win that one (for the most part). I like film cameras and lenses because they have an aesthetic of their own.