Titan owners with 4" lifts...

I have been flirting with the idea of a 4" lift for a long time now, and I now have the opportunity to get pretty much any parts at cost (rather than retail), since my old boss is now running a dealership that is a new ford dealer, but also specializes in custom trucks (lifts/drops/exhausts/etc).

Here's the thing, my truck is still primarily a commuter, but also a weekend toy. I don't do any rock crawling or extreme off road stuff, but would like a kit that handles well on and off road. What lift for a 4x4 would you guys recommend? Also I have the same needs for tires (fairly quiet/smooth on road, and good all season performance). What size/brand of tires are you guys running?

Post pics if possible...

Thanks