Well, being in my new position I've had a few days to research.
Today I chose Data Mining add in for Excel.
The download is straight forward.
At the end it prompts you to find a SQL Server 2012 Analysis Server to connect to.
So I just happened to have one as we installed it yesterday.
So I opened an existing Excel Spreadsheet, formed a table of data, clicked on Data Mining, and had the entire arsenal to begin mining.
I played around a bit and created some models, not really understanding what I was doing.
Nonetheless, it produced some results which I thought were great.
Then I logged onto SQL-Server Analysis Server and sure enough, my 3 new models were copied there as well, which can then be re-processed, etc.
So first of all, I'm getting to dabble in some new technology. Secondly, this new technology will hopefully pay dividends once I get more understanding of the new databases, new business rules and new customers. Third, I have learned more in 2 days on the new job than in 1.5 years at the old job.