FYI...just a heads-up in case it affects you on that day...
PayPal Gives Advance Warning of March 18th Downtime
By Ina Steiner
AuctionBytes.com
February 28, 2011
PayPal is in the process of facilitating a data center move to a new facility with improved hardware infrastructure. As a result, some merchants will be unable to process live transactions for approximately one hour, beginning March 18th at 2:00 am PDT. PayPal has notified affected merchants via email and through alerts when they log in to their Manager accounts.