PNY 8GB Optima Pro Attache USB Flash Drive Enhanced for ReadyBoost - $19.99 @ Staples
Once again, copied straight from Slickdeals.net. In case you havent figured out yet, i check there all the time for deals. have gotten some real good ones lately.
Good luck with it all. I am headed to Staples tomorrow for them to pricematch their webiste. Hope they will.