If you ONLY want to manage Solid Edge data (although some other can be thrown into the mix),
If ONLY your department is going to be authoring the data and maintains control of the Sharepoint database,
If you ONLY want to provide others with the ability to view your Solid Edge data through a web-type interface,
then Sharepoint/Insight will work for you.
But, if you want other departments to view in-process work, and have approval authority, and be a part of the work flow, then Insight will probably not be the effective tool you're looking for.
<Insert shameless plug>
If you need a consultant to look at your data and give a good recommendation, I can help further.
Of course, I'm always here at eng-tips to help as much as I can.
<End shameless plug>
--Scott
For some pleasure reading, try FAQ731-376