This mod changes all the way in gta 3 on the new, much nicer and more realistic ;]
Portland Patch:
http://www.gtagarage.com/mods/download.php?f=22305
patch improves the error in the way where is our home in Portland, overlooking the second city
Good Job!
The streets are really nice, but I have... a problem!
I'm a perfectionist, so it probably only bothers me, but on the edge (The edge where you can see Staunton Island) of the Red Light District and Chinatown, some of the street textures are still the old grey!
But still, a lot of work went into this, so, a cookie for you!