i have iriver's new 128mb version. its nice, i like it. got it at best buy for 139, and for 18 bucks more got a 2 year warranty no question ask at BB.
thing about creative muvo, is that it costs the same as iriver, but iriver has tons more features.
ipod i guess it good, but i hear different stuff that the constant jossling such as jogging with it, is no good for the harddrive.
save money and get the 128mb version, seriously, it transfers 128mb worth like 1.5 minutes. it doesn't plug directly into your usb connection, but its a long wire that connects to your pc, then the wire connects to your iriver, so its not a hassle if you only have rear usb slots. plus, with the ipod you need the carry case, which is gonna cost more again, unless u don't mind wearing a fanny pack. =)
another tip, it plays wma files, but when you rip it make sure that "personal management" is unchecked in windows media player, under tools, options. this takes out the copyright feature. if you dont, it won't play on the player.
it sounds better with the equlizer set at "metal".
umm.. i think thats it .