Web Interface Recommendations

[PurpleServerMonkey]

Looking for suggestions on the best framework to use for an
applications web interface.

The user interface doesn't need immediate feedback and will be cross
platform so a web interface is a good solution especially since it
operates as a client\server system and not standalone.

However there's just so many frameworks to choose from it's very
confusing. After a lot of reading it sounds like OSE or Cherrypy might
be good options but I don't have any real world experience with these
frameworks to go by.

Basically the interface won't be the application, it's used to input
data and have the application act on it. It's going to have a
Postgresql database and a number of service\daemon processes that do
the actual work. It will also contain some form based information for
keeping track of requests etc. and grow to a fair number of screens
over time.

Given the above what framework would you recommend?