Binh,
Do you mean only those with "4" or "8" Gb players?
Has Hynix or Samsung come out with a true 4 or 8 gigaBYTE chip yet?
If so, the chip alone must be close to $125- $150USD, not counting the player itself !!
I
EDIT:
Check this out:
http://72.14.203.104/search?q=cache:...s&ct=clnk&cd=3