Do you have any programming constraints on the development language?  I mean should it run on your standard apache server (perl / php only) or is there a possibility to host in a Java container like Tomcat or JBoss?  I'm still kinda new to php (two professional projects, about 6 months experience), but I've been writing Java-based websites since 1999.  If I could use a J2EE container like, say, Apache Tomcat, I probably could do something very nice and it wouldn't take too long.