Short answer:
Yes, you could run Linux but I’d advise against it if you’re not experienced with it.....plus you would definitely be “giving up” a lot of Windows apps you need.
Buy a new laptop. It will come with Windows 8. Don’t worry about it. Go to www.dowmload.com and get a copy of “Classic Shell”. It’s free, and it makes Win8 MUCH more friendly; more Win7-like. You get the “Start” button back, etc....will look very familiar.
Check out the Fujitsu’s. Bought one recently for a lady friend and was blown away by how much laptop you get for the money (17” display, 1TB of disk, 6GB RAM, USB 3.0 ports....the works).
ping
I have a Lenova with AMD Trinity Laptop with Windows 7 I purchased some months ago....but I don't use it much....and I don't use it on the Web.