For commercial properties try Modernvalue software for this, and consult with a local commercial r.e. appraiser - they are more helpful and credible than you would think, and can help with tons of data like market rent etc. for a low price.

Can anybody suggest some good software for tracking the performance of my real estate investments?

"As of December 31, 2011, approximately 7,800 customers used one or more of our on demand software solutions to help manage the operations of approximately 7.3 million rental housing units."

Is there any software that you have used that would work well for this and is not too complicated?

Other stocks might be an interest; Government contractors in high tech R&D, batteries, optics, and software, but I know nothing about software, just what I'm told.

The software at Rich Dad's seminar had amazing features that I feel would make my life easier as a REI.

Software, employees, ect...I have money sitting on the sidelines that I am ready to invest to make my business the most efficient and streamlined as possible.

Especially since they included custom software and direct mail fullfillment.

I was/am in the Oil&Gas software business.

My day job is software and hardware and the starting salaries of new grads will make your jaw drop.