$85 is a good deal, I think. 28-100? If it's a Minolta lens, it's one of the newer ones...quite sharp, and it's also a 'D' lens. That means it takes into account the distance to the object to determine the right amount of power the flash needs to illuminate the subject properly.
The 4 has a 14 segment honeycomb metering pattern that is really quite excellent.
I've never used a 4, but I do own the Maxxum 7, which is a kick ass camera.
http://www.photographyreview.com/cat...2_3105crx.aspx
http://ca.konicaminolta.com/products...um4/index.html