I would agree that they would look nice! To make sure your TPMS(tire pressure monitoring system) works afterwards, make sure you remove your existing valve stems and that they work in the new wheels. I suppose that if they don't, that is a trade off you would have to decide on. Regardless, you probably want another opinion.
In the mean time, I found the following link which is an application of M45 sport wheels on a G35. It looks great but some extra steps were taken like replacing wheelstuds.
http://www.auto-talk.net/how-t....html
Please let me know how it works because I may do this myself at some point.
Thanks.