I'm looking to get a secondary editing laptop. I currently edit using my iMac and I use FCP.

I'm going to be travelling, and so now I need a laptop to edit on the go. Could I get recommendations of the absolute minimum specs I would need to edit files that are HD, and 2-4GBs in size please?

I am looking to spend the absolute least amount of money as possible here, so any recommendations would be great. Anything between 250 - 400 would be great.