T.F.
If you want something more basic, why not consider LeapFrog's new LeapPad? I just replaced my kids' Leapster Explorer with the new LeapPad and they are loving it, and so am I. I love it so much I wrote a review of it - here's a link if you'd like to read my review: http://lilyrose.hubpages.com/hub/LeapFrog-LeapPad-Explore...
Mine are almost-5 and 6, by the way, and they LOVE this LeapPad - it's leaps (no pun intended!) and bounds ahead of the previous devices!