My brother-in-law is getting married in April, and a good portion of the invited quest will be Portuguese.

The DJ will play supplied Portugues music, but we are not sure of what is out there.

Iam looking for hopefully a list of Wedding Potuguese dance music, I guess whatever is popular and would hit a broad range of ages.

I can probably find the songs to download , I just need the names with artists,

Thanks in advance

You'll find several names of artists and their style of music on the following:
http://en.wikipedia.org/wiki/Music_of_Portugal

Hope this helps.