if you widen the stance with spacers or a much wider tire you will get nasty wheel rub when turning. You could go up to a 245/70/r16 tire, but even that will rub under full turning lock.
I suppose if you don't want a lift you could try and get your hands on some Liberty Jet rims and tires. Those are wider, but a bit smaller to accomodate the extra width. that might give you the look you want.
Your best bet is still a proper spring lift kit like an OME or JBA kit and then some 245/75/16 or larger tires. I think the OME will allow up to a 255/75/16, but I'm not 100% sure on that. Positive it will allow a 255/70/16 though.
We really do get this question alot. As someone else said, we need a sticky with a tire sizing chart and advice on it.