Windows 7: Transfering Old computer Files to new Win7

I have 2 HD's installed. The old one with Vista. and the new with Windows 7..

what would be the best and easiest way to transfer everything over. I see Windows 7 has easy File Transfer, but that doesn't work with 2 internal HD's I don't think.

Would my best bet be to open them both and just start click and dragging everything.

Also. I've just installed Itunes on my new Windows 7, how can I get my entire Itunes list from my old HD to my new one. If I move all the songs from the download section that were downloaded, they will not all be spelled corrent. I fixed them all in Itunes.

Also, how do I get all the purchased songs from Itunes onto my new drive?