http://store.bamboosolutions.com/project_management_suite.as...
Sharepoint also does Workflow, good for companies that have red-tapes.
Not everybody have red-tapes but for some that do have them, Sharepoint is there to red-taped-taped you :D
Oh and excel in the browser: filters, pivots, formula, sorting, etc.
Also, Excel for data entry! (Excel to Sharepoint List).
Don't forget InfoPath forms to fill out expenses!
SharePoint also solves the problem (depending on how you look at it) with business people not wanting to use Subversion or version control system. It has "Check in" and "Check out" features.
At the end of the day, you can't replicate Sharepoint features with scrappy web-apps. I know it's enticing, but it's a very very super hard sell because the numbers don't add up.