New on Buy.com today, SanDisk 2gb microSD card for under 34 bucks shipped.
Buy.com - SanDisk 2GB microSD Card - SDSDQ-2048-A10M
Or, if you don't mind hassling with rebates, they have a 2gb US Modular brand card for 36.95 - 12.00 rebate for a total of 24.94 shipped.
Buy.com - US Modular 2GB microSD Secure Digital Card - USMICROSD-2GB