I went from a little minivan to my 2012 Megacab 3500 CTD. It's taken some time to get used to how long it is, but i'm getting much, much better at parking it, and as a rule, I either pull through, or back in to parking spaces 95% of the time. Wal-mart is the major exception because they have the angled parking spots that make it a lot easier to get in and out of. The nice thing, it's so massive that nobody pulls out in front of you, my CTD has enough power to pass or out accelerate most things that aren't sports cars, and it's got more interior space than my minivan, has a bed, and lets me keep my man card with me at all times.
Nice truck, and congrats and i'm sorry, on your up coming birth of twins.
Branden