Just wanted to share my findings with everyone. I came across a set of Jetta/Golf GTi wheels and picked them up for a reasonable amount. The bolt pattern and centerbore are identical. There were a few snags though. The lugbolts that are used to hold the wheels on most German cars have a "ball seat" instead of a 60 degree flat taper seat as on our stock PT lugnuts. This means where the nut sits has a concave/round section like this ( rather than this /. I found some washers that sit betweent my lugnuts and the seat on the wheel. They worked perfect. Now I have 17x7 38mm offset wheels on the GT. They look like they belong on the car, and the wheel to body relationship is much better than stock. Best of all the Continental Extreme Contact tires I bought are a nice 225/45-17. I'll try to get some pics soon.
Just thought i'd share.
Here's the wheels I got...
