Note: While the last "balance" is the accurate number of bitcoins available to this address, it is likely not the balance available to this person. Every time a transaction is sent, some bitcoins are usually sent back to yourself at a new address (not included in the Bitcoin UI), which makes the balance of a single address misleading. See the wiki for more info on transactions.

758e8efd48... Block 154378 (2011-11-22 17:29:55) 1807.8469 Received: Address 1807.8469
f65b899841... Block 154380 (2011-11-22 18:08:58) 1807.8469 Sent: Address 0