...oh, by the way...If you are wanting to consider film that is more "interesting" than accurate, see if you can get your hands on some Ferrania Solaris. It is available in both ISO 100 and 400 speeds and can be very rewarding for certain subjects (think street and off-beat...). It is a difficult to come by in North America, but rumor has it that the house brand film from fourcornerstore.com is Solaris 100.
For examples of that special Ferrania look:
Flickr: Ferrania Wonderland
or search this site. Several of us here on PF have shot with Ferrania over the years.
Steve