Hi there Pat!
To begin with, you are looking at a Yamaha piano, which has an excellent reputation amongst musicians world-wide. I am familiar with the U-Series - large, solid sounding instrument with a nice action (very important for young learners particularly), with a clear tone.
I'm not at all familiar with the T-series, but a quick google check came up with this link from the Yamaha site:
http://www.yamaha.com/hospitality/acoustic.asp
This will probably only give more sale-speak, but it's a further link for you to check things out. I would say that they would be both quite acceptable instruments to begin learning on.