How many licences in a download of Logic?

After careful consideration, I want to go for Logic 9 as a MIDI sequencer/editor on my MacBook as I need to be able to manipulate and export midi files.

I'm likely to buy an iMac within the next 12 months and use that as my main machine for music production. If I download Logic 9 from the Apple Store onto my MacBook now, can I copy and install that download onto the iMac later or will I have to buy another copy for the iMac?

If i'm not mistaken, you can install on two machines that belong to you.

If so, how do I do that? I'm new to Mac and haven't bought anything from the Apple Store yet. I understand that Logic 9 is a big download - too big to copy to a memory stick. If I buy it from the Store, can I download it from there for the 2nd machine in the future or do I have to copy/burn the download?

Purchases made from the Mac App store can be installed on as many Macs that you personally own. There are no license restrictions other than that. Do a search here for instructions on how to download your purchase multiple times without having to pay again.

Thanks, that's what I wanted to know.