Thanks for the replies.....
John. Battery life really isn't important because of the way I use a laptop. I've had this one for 4 years and I think it has run on battery perhaps twice in that time, then only briefly. I basically use it as a portable desktop.
The main reason I'm after a replacement is the screen resolution. I'm getting more and more deadlines to hit with video work and much of the time I'm away from my studio. I can't capture at the resolution I want so that's the most important thing. It'll allow me to work far more often rather than having to plan quite as far in front.
The FW is really secondary because if the worst comes to the worst my current laptop is capable of tracking with my ZED but of course it'd be far easier to use just one.
GS - I've had several Toshiba's (this one is) and I've never had a problem other than their hard drives which fail far more than any other brand I've come across but that's an easy fix. If they had something suitable I'd have it without a doubt but AFAIK they don't.
Large screens with the resolution I want seem hard to come by, FW even harder and express slots almost as bad. It seems it's HP, Dell or nothing - seeing as nothing isn't an option it's the HP or Dell. I haven't had any experience with HP for at least 15 years when I had a desktop. I have had a couple of Dells also a while ago (10 years or so) and wasn't impressed but I do understand that things/brands change.
I looked at a cube but I may as well drag the desktop around if I've got to start carrying a monitor around.
Thanks for the comp on the videos - I guess I could do one on Studio One but seeing as I wouldn't have a clue about using it I doubt it'd be very informative.