Just sold the 256GB SSD in my 13" 2010 MacBook Pro (Lion) in order to fund a new 512GB SSD 
But I won't have the new SSD until Friday
Is there a easy way to backup everything on the current SSD to a external hard drive or my NAS and just restore it back on to the new SSD when I Get it?
Sorry I'm a bit thick and never had reason to do any sort of a system backup on Mac
Thanks

But I won't have the new SSD until Friday

Is there a easy way to backup everything on the current SSD to a external hard drive or my NAS and just restore it back on to the new SSD when I Get it?
Sorry I'm a bit thick and never had reason to do any sort of a system backup on Mac

Thanks