Teeny, tiny technology

Ipod? Mp3 player? Same thing or different. And if Ipod is a brand of Mp3 player, are:
Archos , BenQ , Creative Labs , D-Link Systems , Dell , DigitalWay MPIO , Frontier Labs NEX , Gateway , Iomega , iRiver , iRock , Lexar , Microsoft , Panasonic , Philips-Nike , Polaroid , RCA , Rio , Samsung , SanDisk , Sony (thank you ebay!) all brands of an Mp3 player too? SO MANY CHOICES!

I don't need it to hold 10,000 songs or even 500. I just need it to hold enough to last me an hour's workout or a really LONG walk/run. I am guessing 100 songs would be JUST fine. Any suggestions anyone? Henry Ford was smart when he said: "The customer can have any color he wants; as long as he wants black" or something like that. I feel you, Mr. Ford!

I should have just renewed my Gold's membership when they were offering one for free (sigh)