Jorge,
What a tough question to start this forum! I am not sure what you mean about storing everything electronically. If you mean all records, notes, etc., then this is a reality. If you mean all tests, scoring, results, and so on, then this is also reality. If you mean doing therapy online, this is a gray area!
As for keeping everything electronically, there is nothing to stop you from doing that. I strongly advise that you keep two sets of back-ups, made at the end of each day, one on site and one stored somewhere safe off-site.
Finally, as for practice management software, see my new book The Mental Health Technology Bible (www.ocpapsych.com/mhtbible.htm) for a review of 24 such programs.
lr