I use a Free product called SQL Heartbeat by SQL solutions. It lets you see visually the deadlocks as they happen and with graphic links of who is causing the deadlock. It's saved me many times when running large reports on high transaction servers in production. It's also great for after vendor updates of new software to show where issues are with their new db and stored proc code. Instead of custom doing all your own code, which is nightmare if you ever quit and another db takes your place, I prefer to purchase an inexpensive solution from a vendor so you have support, graphs and charting, alerts, etc. something like Redgate or SQL Solutions Deadlock detector.