Events calendar recommendation

[lelias2k]

I have posted this question elsewhere in the forums, but since I got no replies I'm going to give it a shot here.

I have been looking for an extension that will allow me to maintain an event calendar similar to Trumba (http://www.trumba.com).

I am currently using Trumba as the server for my calendar on http://www.gotogreenla.com, but the monthly fee is starting o bother me.

Is there an extension that at least have most of its features?

If not, is there someone out there willing to work on it?

Thanks a lot in advance.