I need to buy a new laptop that would be suitable for small business. I need the number key and will be adding Quickbooks, which I've never worked on. I can afford to spend a lot but want to get a good performing machine. I currently have a Dell Inspiron 1525 and have been mostly satisfied with it. I went cheap when I bought it several years ago and don't want to make that mistake now that I will be using this for business as well. Should I go Dell, HP, Gateway? Too many choices.