I've been reviewing project mangement software to use in our business. The robust Microsoft Project was the first to be crossed off the list. It certainly would do the job, but the server version is too expensive and we need to share information.

The ubiquitous Outlook/Exchange was then considered. It has tasks, a calendar, public folders, contacts and now SharePoint. All useful, but it is not really suited for our needs.

A portal approach using DotNetNuke could work. The price is right, but I couldn't find any modules that provide task distribution and deadline notification, important features.

37 Signal's baby, Basecamp, is a contender. It is easy to use, web based and has plenty of features, but it's a bit pricey for us.

JotSpot Wiki is a nice site with a bunch of apps from which to choose. Collectively they can be used to manage a project, but they are not related making it difficult for team members to easily find information. 

So far, I like The Copper Project the best. It comes in two versions: standard and corporate. Of course the corporate version has all the features we need, but it is more expensive. However, it's cheaper than Basecamp.

The jury is still out and hopefully we'll find some young energetic entrepenuers out there with a good product that isn't too pricey and works well. The search continues...