Hi guys I have had a few MP3 players from iRiver H10, Sony HD1, Samsung 5gb player with colour screen, NW-E407 Sony player and now the iPOD Nano 4gb. Overall imo the iRiver has had the best sound, quality overall with its only let down being the software. The Nano has amazing size, good audio and bass along with iTunes which imo has to be the best so far in transferring audio. Now the only thing is the Nano has appalling battery life - says 14hrs but my battery is like draining after just 2hrs of use goes down to red! So am looking at this Hitachi Gigabeat 20gb I hear its a great player and has a lot of functions only thing lacking I think is radio and mpeg4? But I go to the gym and jog so is this a good purchase to make? However I want the best in audio as well with great features. Am I best sticking with the Nano or going with the Hitachi player? bearing in mind i need to use it at the gym and go jogging.