In everyones opinion is the IPOD's 4th generation mp3 player better than the rest? I am looking for something with good sound quality, loud enough, and 40gb of space. I heard rumors i dont know if its just with the 1st generation but about how the non replaceable batteries are crap. This website claims to sell the batterys capable for the new slip ipod does it mean 4th generation and if so has anybody tried this. http://www.ipodbattery.com/slimipodinstall.htm I just dont wanna get a mp3 player and find out its no good cause the battery has lost its charge and its not good unless i spend a 100 dollars for the IPODs replacement battery program than a extra hundred to replace the ipod itself when it does lose its charge. I see the HP iRiver 300 is already in japan is this better than the new ipod or not? i know its a little more pricey. Is the ipod worth the money now or in anybodys opinion to wait b/c theres something better comin out soon they know about. Thanks.