Possible to install Leopard Rev.2 from one to another USB drive?

[subsonic]

Hi there,

just a few short questions. I got 2 USB drives, one with 250 GB and one with 500 GB. The 500GB USB case got a SATA HDD built in.

So now i want to copy the Mac installer to the 250GB HDD and install it to the 500GB HDD. Would that be possible? If so, is it the case that i just need to copy the content of the downloaded .iso-File to the 250GB HDD and it works?

Next question, after the installation i want to take the 500GB HDD out of the USB case to connect it to my machines SATA controller. Will this cause any problems?

Is there a Howto about installing Leopard from an USB drive?

Thanks in advance,
Tom