Two questions about 2 older iMac's

[bedouin]

First question is; what is the best way to move ALL the information off the drive of one iMac (G5) to another iMac (Intel)??

One is a G5 iMac with iSight and the other is an Intel iMac (white) 2.16Ghz.

Second question; Is there a way I can remove a scratch on the glass of the iMac Intel?

Thanks