The DX came with two sets of grips(Hogue and Morado) woods and three different the front sight blades. A 5" 629 Classic is at the top of my bucket list.
Rumor has it that the DX was hand picked for it's accuracy because the 6.5 and 8.75 barrel version came with the factory test target. S&W has neither confirmed or denied this, but the Classic and Classic DX 629's are both known for their accuracy.
Iv'e got a Realtree Anaconda with 7.5" barrel, but a 629 Classic 6.5" is at the top of my revolver bucket list. My brother had a older 629 with a 6" barrel and it was a great shooter. Out of the box you can't beat a S&W revolver trigger.