a friend is the production manager of a small theater company. we're looking for PM software, web-based (many users, decentralized, mac and PC), and free (no $$). via Fantastico, my websites have immediate access to dotproject and phprojekt, so that's where i'm starting my search. so far, both look nicely feature-laden and usable. two things they don't seem to have are RSS and webdav. they're not must-haves, but i think it'd be a nice touch. user experiences for either or both are most welcome. requirements --------------- - webserver based - runs on linux - free - can support multiple projects and users - timeline and gantt charts - private and shared calendars and contact lists - robust permissions system - trouble ticket system nice to have -------------- - webdav publishing - RSS - nested projects so -- any packages better than the two i've linked above that i should check into? also -- i'm not at all well-versed in CMS's. should i be thinking about one of those instead? (and which one?) thanks!