Wow...I appreciate the feedback everyone. I'm STILL torn, I'm leaning towards the back because they are "Boxster Spyder" look-a-likes and the finish is a bit brighter. I believe that the front ones more of a matte or machine finish.
Most of your are saying go 18 instead of 19???
I got the idea of 19s from this forum as it seems that most people are upgrading to that size with no ride problems. I guess I better do some more research