Damon,

These folks sell them on eBay for $33.75 for 300 including delivery. Bought my last couple of orders from them and got fast service. You save even more if you buy larger quantities. My last order was for 2100 (7 cases) so I think I'm good for a couple of months.

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=19277&item=5592830100&rd=1