If you do get a new rig, seriously consider the 3500 SRW over the 2500. It's less than a $500 difference, and you get 1100 lbs more hauling capacity (9900 vs. 8800). That's totally worth it in my book.
I have an 03 3500 SRW HO 4WD 48RE, and it does work as adverstised. Very nice driving truck.