edd,
I looked at the Hustler Fastrak Super Duty 54" when I was shopping this fall and was very impressed with the build quality. I just couldn't get the dealer to come down enough compared to the deal I got on the Gravely Pro-Turn 100 Commercial 52". I too think you got the 48" at a very good price and you need to keep us posted on how happy you are with it after using it a while. And like lawn mower fanatic mentioned, share some pics of your new toy!!