Go to buy.com and search for '2GB-2ADP' the first result at the top is a 2gb Kingston microsd card for $10 with free shipping. There's a 5% off coupon out there too
If you aren't too concerned with the brand, supermediastore.com has a 2gb A-data one for $8.99 shipped.
No problem. Buy.com has good prices on Kingston memory all the time, so if you don't get it Friday, it probably won't be long until they have another deal on them. Sometimes you can even get it cheap directly from Kingston.