Some ideas here :
https://www.pentaxforums.com/forums/general-photography/127817-need-compact-s...er-laptop.html
My post from that thread :
Another vote for the MacBook Pro.
After 30 yrs of everything that came before Windows, through every iteration of Windows - I had had enough with crashes, viruses, poor program integration and clashes etc. and decided to give the Apple system a go .... I'll never go back. A delight to use. I know people say this is not about the system but about the computer but you can not differentiate between the two - they are packages, go with a PC and it's Windows or Linux, go with Apple and it's OSX, when you buy one then you are buying into the system - just like choosing a camera system and lenses.
Computer cover - you can always do what I did and buy a composite case to enclose your Mac / PC in, I did and it has been worth every penny (about US$50). The case is still in excellent condition and I know inside is pristine - that wil certainly help with re-sale in a year or two.
I use 4GB memory and it gets by but I use Aperture 3 heavily (or you could use LR3 - both superb products, just depends which one you personally prefer) so I'll be adding more memory very soon to speed it up even more ... however I do always have at least a dozen programs open at any one time !
Other Pros :
Trackpad
Superb screen (never ever noticed reflections - but I don't use it outside except in the odd cafe when I arrive first !) - my wife has a HP and daughter a Sony, at work we have some Dells. The Mac screen blows them all away.
Fantastic program integration.
No noise !
No heat ! My PCs were almost either melting themselves or me.
Battery life (I'm sure some PCs have great battery life too but I really noticed this after switching)
Being able to just close/open the lid anytime and let OSX take care of putting the computer to sleep/waking it up.
n.b. you don't have to use an Apple mouse - I use Logitech and they work great with the MacPro.
Cons
Just 2 USB slots
Wireless is NOT as good as many PCs - this is to do with the location of the receiver/transmitter inside the case where the aluminium interferes with the signal. If you find this an issue it's easy to add a US$20/30 dollar USB booster.
Good luck with whatever you choose !