ignore the anti win 8 nonsense. Windows post 7 is a new deal, with faster timelines and better security. At some point the phone/tablet/computer will merge, likely 3-6 years out and you’ll only have 1 device. W8 no matter the version w8.1pro w8.1rt or phone have a 1 year upgrade schedule going foreword. The hardware requirements are less then W7, so all else equal 8 will be faster.
The new Intel processers (Hastwell sp) have the ability to automatically shut down parts that are not needed, giving battery life close to what you would expect of a tablet. Any touch screen Hastwell system should be fine, though the drive space will be less the you likely want because it will likely have a SSD. (that’s what a usb3 external drive is for) Another note, MS office has moved to a subscription model on win8 devices.
Another thing I’ve found from reading the tech blogs is likely your not going to be able to upgrade the system. maybe memory but nothing else. I’d look for a smaller form factor for mobility, with an external monitor and mouse/keyboard setup. That will let you use both the normal inputs your used to while learning the gestures and touch input that is a major part of W8/W8.1.
Unless you want an ipad do not buy a win8rt device, make sure its a pro.
Thanks, guys.
Very helpful.