with 255 and that offset youll need to grind the rears just a little to prevent rubbing. I had 245s with the same wheel size, It looked and fit great!
For tires check out the nitto NT-05. They were pretty awesome summer tires, but they only lasted about one summer (15-18k miles).
Edit* tehclap is amazing, i think he has his own website, if you search his name and look at his threads/posts you should be able to find it.