Holy crap, learn how to use paragraphs.
I bought a 4 GB one, and used bought a cheap china-made 250 gb HD from here for $50. I've heard some complaints that it isnt actually 250 GB's but I got 100 gb on it now and have had no issues. It took some time to arrive (although it was during xmas) but I think it is worth it.
http://www.dealextreme.com/p/designe...60-black-53889