Don't remember if the safes are big enough for a laptop. If not, where did you store it?
I purchased a great bag from Brookstone. It is slashproof (has wire mesh encased inside), has a cable to lock it to a fixed object, and is large enough to handle your application. I like it because it's portable (packs real small), light, and provides security in places I would never have achieved it prior. If you want more info, lemme know. It's called pacsafe and there are many, many versions and sizes.
We put our MacBook in the safe. It fit just fine.
Obviously it depends on the size of your laptop. My laptop with dimensions 14 3/8" by 9 3/4" just fit into the safe on the Disney Wonder.Don't rember if the safe's are big enough four a laptop. If not where did you store it?