buy the cheap xbox the 199 priced 4gb model and put in an old laptop hard drive for extra space. thats what i did. I now have a 320 gig hard drive in my xbox and the cost of the drive was an old dead laptop. Its pretty ****ing easy to flash the hard drive using a computer. Took me 10 min to figure it out.
All you need is a usb flash drive a computer and an old laptop hard drive.