Hi!, I age 70-wife age 67 taking piano lessons presently. We purchased
a 88 key consul type piano recently in our home in Indiana. We
vacation to our winter trailor home in northern Florida 10 days or so
each winter month for all practical purposes. We want to keep leaning
during our winter vists so we can play before we die!  My thought is
to purchase a hopefully simple type 88 keyboard portable piano- one that
functions as close to a regular piano without any accompanyment Is it
possible to purchase one like this that hooks up to a computor because
we learn more this way in my thinking. We do have  an XP computor in
Florida also. The more simple the better in as much as We do not need Aire
conditioning in the winter in Anartica. Your expertise and help in
conveying information in a laymans fashion will be deeply appreciated.
Once again a solo instrument-88 keyboard- the cost secondary, thereby
keeping focused
on aming to to be just and old time piano player! Thanks! Sincerely,
Smack

I've been a professional pianist for 40 years.  My electronic piano fo
choice is the Korg SP-300.  88 weighted keys, lightweight, built-in
terrific amp and speakers, and MIDI In and Out for communication with
your computer.  Trust me on this one.
http://www.keyboardmag.com/archive/0703/0703_r2.htm