Newegg.com has the subject drives at pretty good (for flash drives) prices. After rebate, the drives end up at ~$1.5/GB. The rebate is good until 10/31/2010.
The Newegg item numbers are: N82E16820220370 (for the 64GB)
and N82E16820220406 (for the 128GB)
I have no financial interest in Newegg.com. I am a repeat Newegg.com customer and thought these might be as useful for some of you as they will be for me.
I have not used either one with a plug yet; but, they are supposed to work with Linux 2.4 and later.